394101760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 176

約数和(自身を含む): 1056448512

約数和(自身を除く): 662346752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 191, 208, 248, 256, 260, 310, 320, 382, 403, 416, 496, 512, 520, 620, 640, 764, 806, 832, 955, 992, 1024, 1040, 1240, 1280, 1528, 1612, 1664, 1910, 1984, 2015, 2080, 2480, 2483, 2560, 3056, 3224, 3328, 3820, 3968, 4030, 4160, 4960, 4966, 5120, 5921, 6112, 6448, 6656, 7640, 7936, 8060, 8320, 9920, 9932, 11842, 12224, 12415, 12896, 13312, 15280, 15872, 16120, 16640, 19840, 19864, 23684, 24448, 24830, 25792, 29605, 30560, 31744, 32240, 33280, 39680, 39728, 47368, 48896, 49660, 51584, 59210, 61120, 64480, 66560, 76973, 79360, 79456, 94736, 97792, 99320, 103168, 118420, 122240, 128960, 153946, 158720, 158912, 189472, 195584, 198640, 206336, 236840, 244480, 257920, 307892, 317824, 378944, 384865, 397280, 412672, 473680, 488960, 515840, 615784, 635648, 757888, 769730, 794560, 947360, 977920, 1031680, 1231568, 1271296, 1515776, 1539460, 1589120, 1894720, 2063360, 2463136, 2542592, 3031552, 3078920, 3178240, 3789440, 4926272, 6063104, 6157840, 6356480, 7578880, 9852544, 12315680, 12712960, 15157760, 19705088, 24631360, 30315520, 39410176, 49262720, 78820352, 98525440, 197050880, 394101760]

約数ペア:

[(1, 394101760), (2, 197050880), (4, 98525440), (5, 78820352), (8, 49262720), (10, 39410176), (13, 30315520), (16, 24631360), (20, 19705088), (26, 15157760), (31, 12712960), (32, 12315680), (40, 9852544), (52, 7578880), (62, 6356480), (64, 6157840), (65, 6063104), (80, 4926272), (104, 3789440), (124, 3178240), (128, 3078920), (130, 3031552), (155, 2542592), (160, 2463136), (191, 2063360), (208, 1894720), (248, 1589120), (256, 1539460), (260, 1515776), (310, 1271296), (320, 1231568), (382, 1031680), (403, 977920), (416, 947360), (496, 794560), (512, 769730), (520, 757888), (620, 635648), (640, 615784), (764, 515840), (806, 488960), (832, 473680), (955, 412672), (992, 397280), (1024, 384865), (1040, 378944), (1240, 317824), (1280, 307892), (1528, 257920), (1612, 244480), (1664, 236840), (1910, 206336), (1984, 198640), (2015, 195584), (2080, 189472), (2480, 158912), (2483, 158720), (2560, 153946), (3056, 128960), (3224, 122240), (3328, 118420), (3820, 103168), (3968, 99320), (4030, 97792), (4160, 94736), (4960, 79456), (4966, 79360), (5120, 76973), (5921, 66560), (6112, 64480), (6448, 61120), (6656, 59210), (7640, 51584), (7936, 49660), (8060, 48896), (8320, 47368), (9920, 39728), (9932, 39680), (11842, 33280), (12224, 32240), (12415, 31744), (12896, 30560), (13312, 29605), (15280, 25792), (15872, 24830), (16120, 24448), (16640, 23684), (19840, 19864)]