12718420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4447}}^1$

素因数の和:4480

約数の個数: 48

約数和(自身を含む): 31385088

約数和(自身を除く): 18666668

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 4447, 8894, 17788, 22235, 44470, 48917, 57811, 88940, 97834, 115622, 195668, 231244, 244585, 289055, 489170, 578110, 635921, 978340, 1156220, 1271842, 2543684, 3179605, 6359210, 12718420]

約数ペア:

[(1, 12718420), (2, 6359210), (4, 3179605), (5, 2543684), (10, 1271842), (11, 1156220), (13, 978340), (20, 635921), (22, 578110), (26, 489170), (44, 289055), (52, 244585), (55, 231244), (65, 195668), (110, 115622), (130, 97834), (143, 88940), (220, 57811), (260, 48917), (286, 44470), (572, 22235), (715, 17788), (1430, 8894), (2860, 4447)]