256913120

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51797}}^1$

素因数の和:51843

約数の個数: 48

約数和(自身を含む): 626548608

約数和(自身を除く): 369635488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 51797, 103594, 207188, 258985, 414376, 517970, 828752, 1035940, 1605707, 1657504, 2071880, 3211414, 4143760, 6422828, 8028535, 8287520, 12845656, 16057070, 25691312, 32114140, 51382624, 64228280, 128456560, 256913120]

約数ペア:

[(1, 256913120), (2, 128456560), (4, 64228280), (5, 51382624), (8, 32114140), (10, 25691312), (16, 16057070), (20, 12845656), (31, 8287520), (32, 8028535), (40, 6422828), (62, 4143760), (80, 3211414), (124, 2071880), (155, 1657504), (160, 1605707), (248, 1035940), (310, 828752), (496, 517970), (620, 414376), (992, 258985), (1240, 207188), (2480, 103594), (4960, 51797)]