491640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 1568160

約数和(自身を除く): 1076520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 241, 255, 340, 408, 482, 510, 680, 723, 964, 1020, 1205, 1446, 1928, 2040, 2410, 2892, 3615, 4097, 4820, 5784, 7230, 8194, 9640, 12291, 14460, 16388, 20485, 24582, 28920, 32776, 40970, 49164, 61455, 81940, 98328, 122910, 163880, 245820, 491640]

約数ペア:

[(1, 491640), (2, 245820), (3, 163880), (4, 122910), (5, 98328), (6, 81940), (8, 61455), (10, 49164), (12, 40970), (15, 32776), (17, 28920), (20, 24582), (24, 20485), (30, 16388), (34, 14460), (40, 12291), (51, 9640), (60, 8194), (68, 7230), (85, 5784), (102, 4820), (120, 4097), (136, 3615), (170, 2892), (204, 2410), (241, 2040), (255, 1928), (340, 1446), (408, 1205), (482, 1020), (510, 964), (680, 723)]