638805840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4519}}^1$

素因数の和:4585

約数の個数: 160

約数和(自身を含む): 2152243200

約数和(自身を除く): 1513437360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 589, 620, 744, 760, 912, 930, 1140, 1178, 1240, 1488, 1520, 1767, 1860, 2280, 2356, 2480, 2945, 3534, 3720, 4519, 4560, 4712, 5890, 7068, 7440, 8835, 9038, 9424, 11780, 13557, 14136, 17670, 18076, 22595, 23560, 27114, 28272, 35340, 36152, 45190, 47120, 54228, 67785, 70680, 72304, 85861, 90380, 108456, 135570, 140089, 141360, 171722, 180760, 216912, 257583, 271140, 280178, 343444, 361520, 420267, 429305, 515166, 542280, 560356, 686888, 700445, 840534, 858610, 1030332, 1084560, 1120712, 1287915, 1373776, 1400890, 1681068, 1717220, 2060664, 2101335, 2241424, 2575830, 2661691, 2801780, 3362136, 3434440, 4121328, 4202670, 5151660, 5323382, 5603560, 6724272, 6868880, 7985073, 8405340, 10303320, 10646764, 11207120, 13308455, 15970146, 16810680, 20606640, 21293528, 26616910, 31940292, 33621360, 39925365, 42587056, 53233820, 63880584, 79850730, 106467640, 127761168, 159701460, 212935280, 319402920, 638805840]

約数ペア:

[(1, 638805840), (2, 319402920), (3, 212935280), (4, 159701460), (5, 127761168), (6, 106467640), (8, 79850730), (10, 63880584), (12, 53233820), (15, 42587056), (16, 39925365), (19, 33621360), (20, 31940292), (24, 26616910), (30, 21293528), (31, 20606640), (38, 16810680), (40, 15970146), (48, 13308455), (57, 11207120), (60, 10646764), (62, 10303320), (76, 8405340), (80, 7985073), (93, 6868880), (95, 6724272), (114, 5603560), (120, 5323382), (124, 5151660), (152, 4202670), (155, 4121328), (186, 3434440), (190, 3362136), (228, 2801780), (240, 2661691), (248, 2575830), (285, 2241424), (304, 2101335), (310, 2060664), (372, 1717220), (380, 1681068), (456, 1400890), (465, 1373776), (496, 1287915), (570, 1120712), (589, 1084560), (620, 1030332), (744, 858610), (760, 840534), (912, 700445), (930, 686888), (1140, 560356), (1178, 542280), (1240, 515166), (1488, 429305), (1520, 420267), (1767, 361520), (1860, 343444), (2280, 280178), (2356, 271140), (2480, 257583), (2945, 216912), (3534, 180760), (3720, 171722), (4519, 141360), (4560, 140089), (4712, 135570), (5890, 108456), (7068, 90380), (7440, 85861), (8835, 72304), (9038, 70680), (9424, 67785), (11780, 54228), (13557, 47120), (14136, 45190), (17670, 36152), (18076, 35340), (22595, 28272), (23560, 27114)]