51550120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 128799720

約数和(自身を除く): 77249600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 43, 68, 82, 85, 86, 136, 164, 170, 172, 205, 215, 328, 340, 344, 410, 430, 680, 697, 731, 820, 860, 1394, 1462, 1640, 1720, 1763, 1849, 2788, 2924, 3485, 3526, 3655, 3698, 5576, 5848, 6970, 7052, 7310, 7396, 8815, 9245, 13940, 14104, 14620, 14792, 17630, 18490, 27880, 29240, 29971, 31433, 35260, 36980, 59942, 62866, 70520, 73960, 75809, 119884, 125732, 149855, 151618, 157165, 239768, 251464, 299710, 303236, 314330, 379045, 599420, 606472, 628660, 758090, 1198840, 1257320, 1288753, 1516180, 2577506, 3032360, 5155012, 6443765, 10310024, 12887530, 25775060, 51550120]

約数ペア:

[(1, 51550120), (2, 25775060), (4, 12887530), (5, 10310024), (8, 6443765), (10, 5155012), (17, 3032360), (20, 2577506), (34, 1516180), (40, 1288753), (41, 1257320), (43, 1198840), (68, 758090), (82, 628660), (85, 606472), (86, 599420), (136, 379045), (164, 314330), (170, 303236), (172, 299710), (205, 251464), (215, 239768), (328, 157165), (340, 151618), (344, 149855), (410, 125732), (430, 119884), (680, 75809), (697, 73960), (731, 70520), (820, 62866), (860, 59942), (1394, 36980), (1462, 35260), (1640, 31433), (1720, 29971), (1763, 29240), (1849, 27880), (2788, 18490), (2924, 17630), (3485, 14792), (3526, 14620), (3655, 14104), (3698, 13940), (5576, 9245), (5848, 8815), (6970, 7396), (7052, 7310)]