291391520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{260171}}^1$

素因数の和:260193

約数の個数: 48

約数和(自身を含む): 786760128

約数和(自身を除く): 495368608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 260171, 520342, 1040684, 1300855, 1821197, 2081368, 2601710, 3642394, 4162736, 5203420, 7284788, 8325472, 9105985, 10406840, 14569576, 18211970, 20813680, 29139152, 36423940, 41627360, 58278304, 72847880, 145695760, 291391520]

約数ペア:

[(1, 291391520), (2, 145695760), (4, 72847880), (5, 58278304), (7, 41627360), (8, 36423940), (10, 29139152), (14, 20813680), (16, 18211970), (20, 14569576), (28, 10406840), (32, 9105985), (35, 8325472), (40, 7284788), (56, 5203420), (70, 4162736), (80, 3642394), (112, 2601710), (140, 2081368), (160, 1821197), (224, 1300855), (280, 1040684), (560, 520342), (1120, 260171)]