19468021240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{665801}}^1$

素因数の和:665872

約数の個数: 64

約数和(自身を含む): 47458366560

約数和(自身を除く): 27990345320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2924, 3655, 5848, 7310, 14620, 29240, 665801, 1331602, 2663204, 3329005, 5326408, 6658010, 11318617, 13316020, 22637234, 26632040, 28629443, 45274468, 56593085, 57258886, 90548936, 113186170, 114517772, 143147215, 226372340, 229035544, 286294430, 452744680, 486700531, 572588860, 973401062, 1145177720, 1946802124, 2433502655, 3893604248, 4867005310, 9734010620, 19468021240]

約数ペア:

[(1, 19468021240), (2, 9734010620), (4, 4867005310), (5, 3893604248), (8, 2433502655), (10, 1946802124), (17, 1145177720), (20, 973401062), (34, 572588860), (40, 486700531), (43, 452744680), (68, 286294430), (85, 229035544), (86, 226372340), (136, 143147215), (170, 114517772), (172, 113186170), (215, 90548936), (340, 57258886), (344, 56593085), (430, 45274468), (680, 28629443), (731, 26632040), (860, 22637234), (1462, 13316020), (1720, 11318617), (2924, 6658010), (3655, 5326408), (5848, 3329005), (7310, 2663204), (14620, 1331602), (29240, 665801)]