20895960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 66977280

約数和(自身を除く): 46081320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 67, 69, 92, 113, 115, 120, 134, 138, 184, 201, 226, 230, 268, 276, 335, 339, 345, 402, 452, 460, 536, 552, 565, 670, 678, 690, 804, 904, 920, 1005, 1130, 1340, 1356, 1380, 1541, 1608, 1695, 2010, 2260, 2599, 2680, 2712, 2760, 3082, 3390, 4020, 4520, 4623, 5198, 6164, 6780, 7571, 7705, 7797, 8040, 9246, 10396, 12328, 12995, 13560, 15142, 15410, 15594, 18492, 20792, 22713, 23115, 25990, 30284, 30820, 31188, 36984, 37855, 38985, 45426, 46230, 51980, 60568, 61640, 62376, 75710, 77970, 90852, 92460, 103960, 113565, 151420, 155940, 174133, 181704, 184920, 227130, 302840, 311880, 348266, 454260, 522399, 696532, 870665, 908520, 1044798, 1393064, 1741330, 2089596, 2611995, 3482660, 4179192, 5223990, 6965320, 10447980, 20895960]

約数ペア:

[(1, 20895960), (2, 10447980), (3, 6965320), (4, 5223990), (5, 4179192), (6, 3482660), (8, 2611995), (10, 2089596), (12, 1741330), (15, 1393064), (20, 1044798), (23, 908520), (24, 870665), (30, 696532), (40, 522399), (46, 454260), (60, 348266), (67, 311880), (69, 302840), (92, 227130), (113, 184920), (115, 181704), (120, 174133), (134, 155940), (138, 151420), (184, 113565), (201, 103960), (226, 92460), (230, 90852), (268, 77970), (276, 75710), (335, 62376), (339, 61640), (345, 60568), (402, 51980), (452, 46230), (460, 45426), (536, 38985), (552, 37855), (565, 36984), (670, 31188), (678, 30820), (690, 30284), (804, 25990), (904, 23115), (920, 22713), (1005, 20792), (1130, 18492), (1340, 15594), (1356, 15410), (1380, 15142), (1541, 13560), (1608, 12995), (1695, 12328), (2010, 10396), (2260, 9246), (2599, 8040), (2680, 7797), (2712, 7705), (2760, 7571), (3082, 6780), (3390, 6164), (4020, 5198), (4520, 4623)]