258574720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13033}}^1$

素因数の和:13083

約数の個数: 64

約数和(自身を含む): 638144640

約数和(自身を除く): 379569920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 13033, 19840, 26066, 52132, 65165, 104264, 130330, 208528, 260660, 404023, 417056, 521320, 808046, 834112, 1042640, 1616092, 1668224, 2020115, 2085280, 3232184, 4040230, 4170560, 6464368, 8080460, 8341120, 12928736, 16160920, 25857472, 32321840, 51714944, 64643680, 129287360, 258574720]

約数ペア:

[(1, 258574720), (2, 129287360), (4, 64643680), (5, 51714944), (8, 32321840), (10, 25857472), (16, 16160920), (20, 12928736), (31, 8341120), (32, 8080460), (40, 6464368), (62, 4170560), (64, 4040230), (80, 3232184), (124, 2085280), (128, 2020115), (155, 1668224), (160, 1616092), (248, 1042640), (310, 834112), (320, 808046), (496, 521320), (620, 417056), (640, 404023), (992, 260660), (1240, 208528), (1984, 130330), (2480, 104264), (3968, 65165), (4960, 52132), (9920, 26066), (13033, 19840)]