657306880

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:396

約数の個数: 144

約数和(自身を含む): 1668885120

約数和(自身を除く): 1011578240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 83, 92, 115, 128, 160, 166, 184, 230, 256, 269, 320, 332, 368, 415, 460, 538, 640, 664, 736, 830, 920, 1076, 1280, 1328, 1345, 1472, 1660, 1840, 1909, 2152, 2656, 2690, 2944, 3320, 3680, 3818, 4304, 5312, 5380, 5888, 6187, 6640, 7360, 7636, 8608, 9545, 10624, 10760, 12374, 13280, 14720, 15272, 17216, 19090, 21248, 21520, 22327, 24748, 26560, 29440, 30544, 30935, 34432, 38180, 43040, 44654, 49496, 53120, 61088, 61870, 68864, 76360, 86080, 89308, 98992, 106240, 111635, 122176, 123740, 152720, 172160, 178616, 197984, 223270, 244352, 247480, 305440, 344320, 357232, 395968, 446540, 488704, 494960, 513521, 610880, 714464, 791936, 893080, 989920, 1027042, 1221760, 1428928, 1583872, 1786160, 1979840, 2054084, 2443520, 2567605, 2857856, 3572320, 3959680, 4108168, 5135210, 5715712, 7144640, 7919360, 8216336, 10270420, 14289280, 16432672, 20540840, 28578560, 32865344, 41081680, 65730688, 82163360, 131461376, 164326720, 328653440, 657306880]

約数ペア:

[(1, 657306880), (2, 328653440), (4, 164326720), (5, 131461376), (8, 82163360), (10, 65730688), (16, 41081680), (20, 32865344), (23, 28578560), (32, 20540840), (40, 16432672), (46, 14289280), (64, 10270420), (80, 8216336), (83, 7919360), (92, 7144640), (115, 5715712), (128, 5135210), (160, 4108168), (166, 3959680), (184, 3572320), (230, 2857856), (256, 2567605), (269, 2443520), (320, 2054084), (332, 1979840), (368, 1786160), (415, 1583872), (460, 1428928), (538, 1221760), (640, 1027042), (664, 989920), (736, 893080), (830, 791936), (920, 714464), (1076, 610880), (1280, 513521), (1328, 494960), (1345, 488704), (1472, 446540), (1660, 395968), (1840, 357232), (1909, 344320), (2152, 305440), (2656, 247480), (2690, 244352), (2944, 223270), (3320, 197984), (3680, 178616), (3818, 172160), (4304, 152720), (5312, 123740), (5380, 122176), (5888, 111635), (6187, 106240), (6640, 98992), (7360, 89308), (7636, 86080), (8608, 76360), (9545, 68864), (10624, 61870), (10760, 61088), (12374, 53120), (13280, 49496), (14720, 44654), (15272, 43040), (17216, 38180), (19090, 34432), (21248, 30935), (21520, 30544), (22327, 29440), (24748, 26560)]