640242480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{62039}}^1$

素因数の和:62098

約数の個数: 80

約数和(自身を含む): 2030941440

約数和(自身を除く): 1390698960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 10320, 62039, 124078, 186117, 248156, 310195, 372234, 496312, 620390, 744468, 930585, 992624, 1240780, 1488936, 1861170, 2481560, 2667677, 2977872, 3722340, 4963120, 5335354, 7444680, 8003031, 10670708, 13338385, 14889360, 16006062, 21341416, 26676770, 32012124, 40015155, 42682832, 53353540, 64024248, 80030310, 106707080, 128048496, 160060620, 213414160, 320121240, 640242480]

約数ペア:

[(1, 640242480), (2, 320121240), (3, 213414160), (4, 160060620), (5, 128048496), (6, 106707080), (8, 80030310), (10, 64024248), (12, 53353540), (15, 42682832), (16, 40015155), (20, 32012124), (24, 26676770), (30, 21341416), (40, 16006062), (43, 14889360), (48, 13338385), (60, 10670708), (80, 8003031), (86, 7444680), (120, 5335354), (129, 4963120), (172, 3722340), (215, 2977872), (240, 2667677), (258, 2481560), (344, 1861170), (430, 1488936), (516, 1240780), (645, 992624), (688, 930585), (860, 744468), (1032, 620390), (1290, 496312), (1720, 372234), (2064, 310195), (2580, 248156), (3440, 186117), (5160, 124078), (10320, 62039)]