1720590980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{167}}^1\times {\mathrm{1427}}^1$

素因数の和:1641

約数の個数: 72

約数和(自身を含む): 3838943808

約数和(自身を除く): 2118352828

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 334, 361, 380, 668, 722, 835, 1427, 1444, 1670, 1805, 2854, 3173, 3340, 3610, 5708, 6346, 7135, 7220, 12692, 14270, 15865, 27113, 28540, 31730, 54226, 60287, 63460, 108452, 120574, 135565, 238309, 241148, 271130, 301435, 476618, 515147, 542260, 602870, 953236, 1030294, 1191545, 1205740, 2060588, 2383090, 2575735, 4527871, 4766180, 5151470, 9055742, 10302940, 18111484, 22639355, 45278710, 86029549, 90557420, 172059098, 344118196, 430147745, 860295490, 1720590980]

約数ペア:

[(1, 1720590980), (2, 860295490), (4, 430147745), (5, 344118196), (10, 172059098), (19, 90557420), (20, 86029549), (38, 45278710), (76, 22639355), (95, 18111484), (167, 10302940), (190, 9055742), (334, 5151470), (361, 4766180), (380, 4527871), (668, 2575735), (722, 2383090), (835, 2060588), (1427, 1205740), (1444, 1191545), (1670, 1030294), (1805, 953236), (2854, 602870), (3173, 542260), (3340, 515147), (3610, 476618), (5708, 301435), (6346, 271130), (7135, 241148), (7220, 238309), (12692, 135565), (14270, 120574), (15865, 108452), (27113, 63460), (28540, 60287), (31730, 54226)]