20139460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2953}}^1$

素因数の和:3004

約数の個数: 48

約数和(自身を含む): 47642112

約数和(自身を除く): 27502652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2953, 3410, 5906, 6820, 11812, 14765, 29530, 32483, 59060, 64966, 91543, 129932, 162415, 183086, 324830, 366172, 457715, 649660, 915430, 1006973, 1830860, 2013946, 4027892, 5034865, 10069730, 20139460]

約数ペア:

[(1, 20139460), (2, 10069730), (4, 5034865), (5, 4027892), (10, 2013946), (11, 1830860), (20, 1006973), (22, 915430), (31, 649660), (44, 457715), (55, 366172), (62, 324830), (110, 183086), (124, 162415), (155, 129932), (220, 91543), (310, 64966), (341, 59060), (620, 32483), (682, 29530), (1364, 14765), (1705, 11812), (2953, 6820), (3410, 5906)]