311289040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5323}}^1$

素因数の和:5396

約数の個数: 80

約数和(自身を含む): 784289088

約数和(自身を除く): 473000048

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 340, 344, 430, 680, 688, 731, 860, 1360, 1462, 1720, 2924, 3440, 3655, 5323, 5848, 7310, 10646, 11696, 14620, 21292, 26615, 29240, 42584, 53230, 58480, 85168, 90491, 106460, 180982, 212920, 228889, 361964, 425840, 452455, 457778, 723928, 904910, 915556, 1144445, 1447856, 1809820, 1831112, 2288890, 3619640, 3662224, 3891113, 4577780, 7239280, 7782226, 9155560, 15564452, 18311120, 19455565, 31128904, 38911130, 62257808, 77822260, 155644520, 311289040]

約数ペア:

[(1, 311289040), (2, 155644520), (4, 77822260), (5, 62257808), (8, 38911130), (10, 31128904), (16, 19455565), (17, 18311120), (20, 15564452), (34, 9155560), (40, 7782226), (43, 7239280), (68, 4577780), (80, 3891113), (85, 3662224), (86, 3619640), (136, 2288890), (170, 1831112), (172, 1809820), (215, 1447856), (272, 1144445), (340, 915556), (344, 904910), (430, 723928), (680, 457778), (688, 452455), (731, 425840), (860, 361964), (1360, 228889), (1462, 212920), (1720, 180982), (2924, 106460), (3440, 90491), (3655, 85168), (5323, 58480), (5848, 53230), (7310, 42584), (10646, 29240), (11696, 26615), (14620, 21292)]