27883880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 65664000

約数和(自身を除く): 37780120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 199, 226, 248, 310, 398, 452, 565, 620, 796, 904, 995, 1130, 1240, 1592, 1990, 2260, 3503, 3980, 4520, 6169, 7006, 7960, 12338, 14012, 17515, 22487, 24676, 28024, 30845, 35030, 44974, 49352, 61690, 70060, 89948, 112435, 123380, 140120, 179896, 224870, 246760, 449740, 697097, 899480, 1394194, 2788388, 3485485, 5576776, 6970970, 13941940, 27883880]

約数ペア:

[(1, 27883880), (2, 13941940), (4, 6970970), (5, 5576776), (8, 3485485), (10, 2788388), (20, 1394194), (31, 899480), (40, 697097), (62, 449740), (113, 246760), (124, 224870), (155, 179896), (199, 140120), (226, 123380), (248, 112435), (310, 89948), (398, 70060), (452, 61690), (565, 49352), (620, 44974), (796, 35030), (904, 30845), (995, 28024), (1130, 24676), (1240, 22487), (1592, 17515), (1990, 14012), (2260, 12338), (3503, 7960), (3980, 7006), (4520, 6169)]