65131780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1621}}^1$

素因数の和:1685

約数の個数: 72

約数和(自身を含む): 163088856

約数和(自身を除く): 97957076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1621, 2009, 2870, 3242, 4018, 5740, 6484, 8036, 8105, 10045, 11347, 16210, 20090, 22694, 32420, 40180, 45388, 56735, 66461, 79429, 113470, 132922, 158858, 226940, 265844, 317716, 332305, 397145, 465227, 664610, 794290, 930454, 1329220, 1588580, 1860908, 2326135, 3256589, 4652270, 6513178, 9304540, 13026356, 16282945, 32565890, 65131780]

約数ペア:

[(1, 65131780), (2, 32565890), (4, 16282945), (5, 13026356), (7, 9304540), (10, 6513178), (14, 4652270), (20, 3256589), (28, 2326135), (35, 1860908), (41, 1588580), (49, 1329220), (70, 930454), (82, 794290), (98, 664610), (140, 465227), (164, 397145), (196, 332305), (205, 317716), (245, 265844), (287, 226940), (410, 158858), (490, 132922), (574, 113470), (820, 79429), (980, 66461), (1148, 56735), (1435, 45388), (1621, 40180), (2009, 32420), (2870, 22694), (3242, 20090), (4018, 16210), (5740, 11347), (6484, 10045), (8036, 8105)]