20271406480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{307}}^1\times {\mathrm{367}}^1$

素因数の和:873

約数の個数: 160

約数和(自身を含む): 51355713024

約数和(自身を除く): 31084306544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 173, 208, 260, 307, 346, 367, 520, 614, 692, 734, 865, 1040, 1228, 1384, 1468, 1535, 1730, 1835, 2249, 2456, 2768, 2936, 3070, 3460, 3670, 3991, 4498, 4771, 4912, 5872, 6140, 6920, 7340, 7982, 8996, 9542, 11245, 12280, 13840, 14680, 15964, 17992, 19084, 19955, 22490, 23855, 24560, 29360, 31928, 35984, 38168, 39910, 44980, 47710, 53111, 63491, 63856, 76336, 79820, 89960, 95420, 106222, 112669, 126982, 159640, 179920, 190840, 212444, 225338, 253964, 265555, 317455, 319280, 381680, 424888, 450676, 507928, 531110, 563345, 634910, 690443, 825383, 849776, 901352, 1015856, 1062220, 1126690, 1269820, 1380886, 1464697, 1650766, 1802704, 2124440, 2253380, 2539640, 2761772, 2929394, 3301532, 3452215, 4126915, 4248880, 4506760, 5079280, 5523544, 5858788, 6603064, 6904430, 7323485, 8253830, 9013520, 11047088, 11717576, 13206128, 13808860, 14646970, 16507660, 19491737, 23435152, 27617720, 29293940, 33015320, 38983474, 55235440, 58587880, 66030640, 77966948, 97458685, 117175760, 155933896, 194917370, 253392581, 311867792, 389834740, 506785162, 779669480, 1013570324, 1266962905, 1559338960, 2027140648, 2533925810, 4054281296, 5067851620, 10135703240, 20271406480]

約数ペア:

[(1, 20271406480), (2, 10135703240), (4, 5067851620), (5, 4054281296), (8, 2533925810), (10, 2027140648), (13, 1559338960), (16, 1266962905), (20, 1013570324), (26, 779669480), (40, 506785162), (52, 389834740), (65, 311867792), (80, 253392581), (104, 194917370), (130, 155933896), (173, 117175760), (208, 97458685), (260, 77966948), (307, 66030640), (346, 58587880), (367, 55235440), (520, 38983474), (614, 33015320), (692, 29293940), (734, 27617720), (865, 23435152), (1040, 19491737), (1228, 16507660), (1384, 14646970), (1468, 13808860), (1535, 13206128), (1730, 11717576), (1835, 11047088), (2249, 9013520), (2456, 8253830), (2768, 7323485), (2936, 6904430), (3070, 6603064), (3460, 5858788), (3670, 5523544), (3991, 5079280), (4498, 4506760), (4771, 4248880), (4912, 4126915), (5872, 3452215), (6140, 3301532), (6920, 2929394), (7340, 2761772), (7982, 2539640), (8996, 2253380), (9542, 2124440), (11245, 1802704), (12280, 1650766), (13840, 1464697), (14680, 1380886), (15964, 1269820), (17992, 1126690), (19084, 1062220), (19955, 1015856), (22490, 901352), (23855, 849776), (24560, 825383), (29360, 690443), (31928, 634910), (35984, 563345), (38168, 531110), (39910, 507928), (44980, 450676), (47710, 424888), (53111, 381680), (63491, 319280), (63856, 317455), (76336, 265555), (79820, 253964), (89960, 225338), (95420, 212444), (106222, 190840), (112669, 179920), (126982, 159640)]