81760020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 239016960

約数和(自身を除く): 157256940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 113, 124, 155, 186, 226, 310, 339, 372, 389, 452, 465, 565, 620, 678, 778, 930, 1130, 1167, 1356, 1556, 1695, 1860, 1945, 2260, 2334, 3390, 3503, 3890, 4668, 5835, 6780, 7006, 7780, 10509, 11670, 12059, 14012, 17515, 21018, 23340, 24118, 35030, 36177, 42036, 43957, 48236, 52545, 60295, 70060, 72354, 87914, 105090, 120590, 131871, 144708, 175828, 180885, 210180, 219785, 241180, 263742, 361770, 439570, 527484, 659355, 723540, 879140, 1318710, 1362667, 2637420, 2725334, 4088001, 5450668, 6813335, 8176002, 13626670, 16352004, 20440005, 27253340, 40880010, 81760020]

約数ペア:

[(1, 81760020), (2, 40880010), (3, 27253340), (4, 20440005), (5, 16352004), (6, 13626670), (10, 8176002), (12, 6813335), (15, 5450668), (20, 4088001), (30, 2725334), (31, 2637420), (60, 1362667), (62, 1318710), (93, 879140), (113, 723540), (124, 659355), (155, 527484), (186, 439570), (226, 361770), (310, 263742), (339, 241180), (372, 219785), (389, 210180), (452, 180885), (465, 175828), (565, 144708), (620, 131871), (678, 120590), (778, 105090), (930, 87914), (1130, 72354), (1167, 70060), (1356, 60295), (1556, 52545), (1695, 48236), (1860, 43957), (1945, 42036), (2260, 36177), (2334, 35030), (3390, 24118), (3503, 23340), (3890, 21018), (4668, 17515), (5835, 14012), (6780, 12059), (7006, 11670), (7780, 10509)]