40409680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 101939904

約数和(自身を除く): 61530224

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, 691, 731, 860, 1360, 1382, 1462, 1720, 2764, 2924, 3440, 3455, 3655, 5528, 5848, 6910, 7310, 11056, 11696, 11747, 13820, 14620, 23494, 27640, 29240, 29713, 46988, 55280, 58480, 58735, 59426, 93976, 117470, 118852, 148565, 187952, 234940, 237704, 297130, 469880, 475408, 505121, 594260, 939760, 1010242, 1188520, 2020484, 2377040, 2525605, 4040968, 5051210, 8081936, 10102420, 20204840, 40409680]

約数ペア:

[(1, 40409680), (2, 20204840), (4, 10102420), (5, 8081936), (8, 5051210), (10, 4040968), (16, 2525605), (17, 2377040), (20, 2020484), (34, 1188520), (40, 1010242), (43, 939760), (68, 594260), (80, 505121), (85, 475408), (86, 469880), (136, 297130), (170, 237704), (172, 234940), (215, 187952), (272, 148565), (340, 118852), (344, 117470), (430, 93976), (680, 59426), (688, 58735), (691, 58480), (731, 55280), (860, 46988), (1360, 29713), (1382, 29240), (1462, 27640), (1720, 23494), (2764, 14620), (2924, 13820), (3440, 11747), (3455, 11696), (3655, 11056), (5528, 7310), (5848, 6910)]