40001220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:674

約数の個数: 144

約数和(自身を含む): 141523200

約数和(自身を除く): 101521980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 315, 318, 371, 420, 477, 530, 599, 630, 636, 742, 795, 954, 1060, 1113, 1198, 1260, 1484, 1590, 1797, 1855, 1908, 2226, 2385, 2396, 2995, 3180, 3339, 3594, 3710, 4193, 4452, 4770, 5391, 5565, 5990, 6678, 7188, 7420, 8386, 8985, 9540, 10782, 11130, 11980, 12579, 13356, 16695, 16772, 17970, 20965, 21564, 22260, 25158, 26955, 31747, 33390, 35940, 37737, 41930, 50316, 53910, 62895, 63494, 66780, 75474, 83860, 95241, 107820, 125790, 126988, 150948, 158735, 188685, 190482, 222229, 251580, 285723, 317470, 377370, 380964, 444458, 476205, 571446, 634940, 666687, 754740, 888916, 952410, 1111145, 1142892, 1333374, 1428615, 1904820, 2000061, 2222290, 2666748, 2857230, 3333435, 4000122, 4444580, 5714460, 6666870, 8000244, 10000305, 13333740, 20000610, 40001220]

約数ペア:

[(1, 40001220), (2, 20000610), (3, 13333740), (4, 10000305), (5, 8000244), (6, 6666870), (7, 5714460), (9, 4444580), (10, 4000122), (12, 3333435), (14, 2857230), (15, 2666748), (18, 2222290), (20, 2000061), (21, 1904820), (28, 1428615), (30, 1333374), (35, 1142892), (36, 1111145), (42, 952410), (45, 888916), (53, 754740), (60, 666687), (63, 634940), (70, 571446), (84, 476205), (90, 444458), (105, 380964), (106, 377370), (126, 317470), (140, 285723), (159, 251580), (180, 222229), (210, 190482), (212, 188685), (252, 158735), (265, 150948), (315, 126988), (318, 125790), (371, 107820), (420, 95241), (477, 83860), (530, 75474), (599, 66780), (630, 63494), (636, 62895), (742, 53910), (795, 50316), (954, 41930), (1060, 37737), (1113, 35940), (1198, 33390), (1260, 31747), (1484, 26955), (1590, 25158), (1797, 22260), (1855, 21564), (1908, 20965), (2226, 17970), (2385, 16772), (2396, 16695), (2995, 13356), (3180, 12579), (3339, 11980), (3594, 11130), (3710, 10782), (4193, 9540), (4452, 8985), (4770, 8386), (5391, 7420), (5565, 7188), (5990, 6678)]