728614280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:487

約数の個数: 128

約数和(自身を含む): 1799280000

約数和(自身を除く): 1070665720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 67, 76, 82, 95, 134, 152, 164, 190, 205, 268, 328, 335, 349, 380, 410, 536, 670, 698, 760, 779, 820, 1273, 1340, 1396, 1558, 1640, 1745, 2546, 2680, 2747, 2792, 3116, 3490, 3895, 5092, 5494, 6232, 6365, 6631, 6980, 7790, 10184, 10988, 12730, 13262, 13735, 13960, 14309, 15580, 21976, 23383, 25460, 26524, 27470, 28618, 31160, 33155, 46766, 50920, 52193, 53048, 54940, 57236, 66310, 71545, 93532, 104386, 109880, 114472, 116915, 132620, 143090, 187064, 208772, 233830, 260965, 265240, 271871, 286180, 417544, 444277, 467660, 521930, 543742, 572360, 888554, 935320, 958703, 1043860, 1087484, 1359355, 1777108, 1917406, 2087720, 2174968, 2221385, 2718710, 3554216, 3834812, 4442770, 4793515, 5437420, 7669624, 8885540, 9587030, 10874840, 17771080, 18215357, 19174060, 36430714, 38348120, 72861428, 91076785, 145722856, 182153570, 364307140, 728614280]

約数ペア:

[(1, 728614280), (2, 364307140), (4, 182153570), (5, 145722856), (8, 91076785), (10, 72861428), (19, 38348120), (20, 36430714), (38, 19174060), (40, 18215357), (41, 17771080), (67, 10874840), (76, 9587030), (82, 8885540), (95, 7669624), (134, 5437420), (152, 4793515), (164, 4442770), (190, 3834812), (205, 3554216), (268, 2718710), (328, 2221385), (335, 2174968), (349, 2087720), (380, 1917406), (410, 1777108), (536, 1359355), (670, 1087484), (698, 1043860), (760, 958703), (779, 935320), (820, 888554), (1273, 572360), (1340, 543742), (1396, 521930), (1558, 467660), (1640, 444277), (1745, 417544), (2546, 286180), (2680, 271871), (2747, 265240), (2792, 260965), (3116, 233830), (3490, 208772), (3895, 187064), (5092, 143090), (5494, 132620), (6232, 116915), (6365, 114472), (6631, 109880), (6980, 104386), (7790, 93532), (10184, 71545), (10988, 66310), (12730, 57236), (13262, 54940), (13735, 53048), (13960, 52193), (14309, 50920), (15580, 46766), (21976, 33155), (23383, 31160), (25460, 28618), (26524, 27470)]