77804570920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1\times {\mathrm{41183}}^1$

素因数の和:41914

約数の個数: 64

約数和(自身を含む): 177736965120

約数和(自身を除く): 99932394200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 647, 730, 1294, 1460, 2588, 2920, 3235, 5176, 6470, 12940, 25880, 41183, 47231, 82366, 94462, 164732, 188924, 205915, 236155, 329464, 377848, 411830, 472310, 823660, 944620, 1647320, 1889240, 3006359, 6012718, 12025436, 15031795, 24050872, 26645401, 30063590, 53290802, 60127180, 106581604, 120254360, 133227005, 213163208, 266454010, 532908020, 1065816040, 1945114273, 3890228546, 7780457092, 9725571365, 15560914184, 19451142730, 38902285460, 77804570920]

約数ペア:

[(1, 77804570920), (2, 38902285460), (4, 19451142730), (5, 15560914184), (8, 9725571365), (10, 7780457092), (20, 3890228546), (40, 1945114273), (73, 1065816040), (146, 532908020), (292, 266454010), (365, 213163208), (584, 133227005), (647, 120254360), (730, 106581604), (1294, 60127180), (1460, 53290802), (2588, 30063590), (2920, 26645401), (3235, 24050872), (5176, 15031795), (6470, 12025436), (12940, 6012718), (25880, 3006359), (41183, 1889240), (47231, 1647320), (82366, 944620), (94462, 823660), (164732, 472310), (188924, 411830), (205915, 377848), (236155, 329464)]