71828240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2633}}^1$

素因数の和:2688

約数の個数: 80

約数和(自身を含む): 188130816

約数和(自身を除く): 116302576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2633, 2728, 3410, 5266, 5456, 6820, 10532, 13165, 13640, 21064, 26330, 27280, 28963, 42128, 52660, 57926, 81623, 105320, 115852, 144815, 163246, 210640, 231704, 289630, 326492, 408115, 463408, 579260, 652984, 816230, 897853, 1158520, 1305968, 1632460, 1795706, 2317040, 3264920, 3591412, 4489265, 6529840, 7182824, 8978530, 14365648, 17957060, 35914120, 71828240]

約数ペア:

[(1, 71828240), (2, 35914120), (4, 17957060), (5, 14365648), (8, 8978530), (10, 7182824), (11, 6529840), (16, 4489265), (20, 3591412), (22, 3264920), (31, 2317040), (40, 1795706), (44, 1632460), (55, 1305968), (62, 1158520), (80, 897853), (88, 816230), (110, 652984), (124, 579260), (155, 463408), (176, 408115), (220, 326492), (248, 289630), (310, 231704), (341, 210640), (440, 163246), (496, 144815), (620, 115852), (682, 105320), (880, 81623), (1240, 57926), (1364, 52660), (1705, 42128), (2480, 28963), (2633, 27280), (2728, 26330), (3410, 21064), (5266, 13640), (5456, 13165), (6820, 10532)]