245501280

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1043

約数の個数: 240

約数和(自身を含む): 912930480

約数和(自身を除く): 667429200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 324, 342, 360, 380, 405, 432, 456, 480, 513, 540, 570, 608, 648, 684, 720, 760, 810, 855, 864, 912, 997, 1026, 1080, 1140, 1296, 1368, 1440, 1520, 1539, 1620, 1710, 1824, 1994, 2052, 2160, 2280, 2565, 2592, 2736, 2991, 3040, 3078, 3240, 3420, 3988, 4104, 4320, 4560, 4985, 5130, 5472, 5982, 6156, 6480, 6840, 7695, 7976, 8208, 8973, 9120, 9970, 10260, 11964, 12312, 12960, 13680, 14955, 15390, 15952, 16416, 17946, 18943, 19940, 20520, 23928, 24624, 26919, 27360, 29910, 30780, 31904, 35892, 37886, 39880, 41040, 44865, 47856, 49248, 53838, 56829, 59820, 61560, 71784, 75772, 79760, 80757, 82080, 89730, 94715, 95712, 107676, 113658, 119640, 123120, 134595, 143568, 151544, 159520, 161514, 170487, 179460, 189430, 215352, 227316, 239280, 246240, 269190, 284145, 287136, 303088, 323028, 340974, 358920, 378860, 403785, 430704, 454632, 478560, 511461, 538380, 568290, 606176, 646056, 681948, 717840, 757720, 807570, 852435, 861408, 909264, 1022922, 1076760, 1136580, 1292112, 1363896, 1435680, 1515440, 1534383, 1615140, 1704870, 1818528, 2045844, 2153520, 2273160, 2557305, 2584224, 2727792, 3030880, 3068766, 3230280, 3409740, 4091688, 4307040, 4546320, 5114610, 5455584, 6137532, 6460560, 6819480, 7671915, 8183376, 9092640, 10229220, 12275064, 12921120, 13638960, 15343830, 16366752, 20458440, 24550128, 27277920, 30687660, 40916880, 49100256, 61375320, 81833760, 122750640, 245501280]

約数ペア:

[(1, 245501280), (2, 122750640), (3, 81833760), (4, 61375320), (5, 49100256), (6, 40916880), (8, 30687660), (9, 27277920), (10, 24550128), (12, 20458440), (15, 16366752), (16, 15343830), (18, 13638960), (19, 12921120), (20, 12275064), (24, 10229220), (27, 9092640), (30, 8183376), (32, 7671915), (36, 6819480), (38, 6460560), (40, 6137532), (45, 5455584), (48, 5114610), (54, 4546320), (57, 4307040), (60, 4091688), (72, 3409740), (76, 3230280), (80, 3068766), (81, 3030880), (90, 2727792), (95, 2584224), (96, 2557305), (108, 2273160), (114, 2153520), (120, 2045844), (135, 1818528), (144, 1704870), (152, 1615140), (160, 1534383), (162, 1515440), (171, 1435680), (180, 1363896), (190, 1292112), (216, 1136580), (228, 1076760), (240, 1022922), (270, 909264), (285, 861408), (288, 852435), (304, 807570), (324, 757720), (342, 717840), (360, 681948), (380, 646056), (405, 606176), (432, 568290), (456, 538380), (480, 511461), (513, 478560), (540, 454632), (570, 430704), (608, 403785), (648, 378860), (684, 358920), (720, 340974), (760, 323028), (810, 303088), (855, 287136), (864, 284145), (912, 269190), (997, 246240), (1026, 239280), (1080, 227316), (1140, 215352), (1296, 189430), (1368, 179460), (1440, 170487), (1520, 161514), (1539, 159520), (1620, 151544), (1710, 143568), (1824, 134595), (1994, 123120), (2052, 119640), (2160, 113658), (2280, 107676), (2565, 95712), (2592, 94715), (2736, 89730), (2991, 82080), (3040, 80757), (3078, 79760), (3240, 75772), (3420, 71784), (3988, 61560), (4104, 59820), (4320, 56829), (4560, 53838), (4985, 49248), (5130, 47856), (5472, 44865), (5982, 41040), (6156, 39880), (6480, 37886), (6840, 35892), (7695, 31904), (7976, 30780), (8208, 29910), (8973, 27360), (9120, 26919), (9970, 24624), (10260, 23928), (11964, 20520), (12312, 19940), (12960, 18943), (13680, 17946), (14955, 16416), (15390, 15952)]