78680640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2060

約数の個数: 112

約数和(自身を含む): 256032000

約数和(自身を除く): 177351360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 160, 164, 192, 205, 240, 246, 320, 328, 410, 480, 492, 615, 656, 820, 960, 984, 1230, 1312, 1640, 1968, 1999, 2460, 2624, 3280, 3936, 3998, 4920, 5997, 6560, 7872, 7996, 9840, 9995, 11994, 13120, 15992, 19680, 19990, 23988, 29985, 31984, 39360, 39980, 47976, 59970, 63968, 79960, 81959, 95952, 119940, 127936, 159920, 163918, 191904, 239880, 245877, 319840, 327836, 383808, 409795, 479760, 491754, 639680, 655672, 819590, 959520, 983508, 1229385, 1311344, 1639180, 1919040, 1967016, 2458770, 2622688, 3278360, 3934032, 4917540, 5245376, 6556720, 7868064, 9835080, 13113440, 15736128, 19670160, 26226880, 39340320, 78680640]

約数ペア:

[(1, 78680640), (2, 39340320), (3, 26226880), (4, 19670160), (5, 15736128), (6, 13113440), (8, 9835080), (10, 7868064), (12, 6556720), (15, 5245376), (16, 4917540), (20, 3934032), (24, 3278360), (30, 2622688), (32, 2458770), (40, 1967016), (41, 1919040), (48, 1639180), (60, 1311344), (64, 1229385), (80, 983508), (82, 959520), (96, 819590), (120, 655672), (123, 639680), (160, 491754), (164, 479760), (192, 409795), (205, 383808), (240, 327836), (246, 319840), (320, 245877), (328, 239880), (410, 191904), (480, 163918), (492, 159920), (615, 127936), (656, 119940), (820, 95952), (960, 81959), (984, 79960), (1230, 63968), (1312, 59970), (1640, 47976), (1968, 39980), (1999, 39360), (2460, 31984), (2624, 29985), (3280, 23988), (3936, 19990), (3998, 19680), (4920, 15992), (5997, 13120), (6560, 11994), (7872, 9995), (7996, 9840)]