388341760

素因数分解:

$2^{13}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:549

約数の個数: 112

約数和(自身を含む): 982980000

約数和(自身を除く): 594638240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 499, 512, 608, 640, 760, 998, 1024, 1216, 1280, 1520, 1996, 2048, 2432, 2495, 2560, 3040, 3992, 4096, 4864, 4990, 5120, 6080, 7984, 8192, 9481, 9728, 9980, 10240, 12160, 15968, 18962, 19456, 19960, 20480, 24320, 31936, 37924, 38912, 39920, 40960, 47405, 48640, 63872, 75848, 77824, 79840, 94810, 97280, 127744, 151696, 155648, 159680, 189620, 194560, 255488, 303392, 319360, 379240, 389120, 510976, 606784, 638720, 758480, 778240, 1021952, 1213568, 1277440, 1516960, 2043904, 2427136, 2554880, 3033920, 4087808, 4854272, 5109760, 6067840, 9708544, 10219520, 12135680, 19417088, 20439040, 24271360, 38834176, 48542720, 77668352, 97085440, 194170880, 388341760]

約数ペア:

[(1, 388341760), (2, 194170880), (4, 97085440), (5, 77668352), (8, 48542720), (10, 38834176), (16, 24271360), (19, 20439040), (20, 19417088), (32, 12135680), (38, 10219520), (40, 9708544), (64, 6067840), (76, 5109760), (80, 4854272), (95, 4087808), (128, 3033920), (152, 2554880), (160, 2427136), (190, 2043904), (256, 1516960), (304, 1277440), (320, 1213568), (380, 1021952), (499, 778240), (512, 758480), (608, 638720), (640, 606784), (760, 510976), (998, 389120), (1024, 379240), (1216, 319360), (1280, 303392), (1520, 255488), (1996, 194560), (2048, 189620), (2432, 159680), (2495, 155648), (2560, 151696), (3040, 127744), (3992, 97280), (4096, 94810), (4864, 79840), (4990, 77824), (5120, 75848), (6080, 63872), (7984, 48640), (8192, 47405), (9481, 40960), (9728, 39920), (9980, 38912), (10240, 37924), (12160, 31936), (15968, 24320), (18962, 20480), (19456, 19960)]