66195320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 154103040

約数和(自身を除く): 87907720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 223, 328, 362, 410, 446, 724, 820, 892, 905, 1115, 1448, 1640, 1784, 1810, 2230, 3620, 4460, 7240, 7421, 8920, 9143, 14842, 18286, 29684, 36572, 37105, 40363, 45715, 59368, 73144, 74210, 80726, 91430, 148420, 161452, 182860, 201815, 296840, 322904, 365720, 403630, 807260, 1614520, 1654883, 3309766, 6619532, 8274415, 13239064, 16548830, 33097660, 66195320]

約数ペア:

[(1, 66195320), (2, 33097660), (4, 16548830), (5, 13239064), (8, 8274415), (10, 6619532), (20, 3309766), (40, 1654883), (41, 1614520), (82, 807260), (164, 403630), (181, 365720), (205, 322904), (223, 296840), (328, 201815), (362, 182860), (410, 161452), (446, 148420), (724, 91430), (820, 80726), (892, 74210), (905, 73144), (1115, 59368), (1448, 45715), (1640, 40363), (1784, 37105), (1810, 36572), (2230, 29684), (3620, 18286), (4460, 14842), (7240, 9143), (7421, 8920)]