20929480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3659}}^1$

素因数の和:3694

約数の個数: 64

約数和(自身を含む): 55339200

約数和(自身を除く): 34409720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3659, 5720, 7318, 14636, 18295, 29272, 36590, 40249, 47567, 73180, 80498, 95134, 146360, 160996, 190268, 201245, 237835, 321992, 380536, 402490, 475670, 523237, 804980, 951340, 1046474, 1609960, 1902680, 2092948, 2616185, 4185896, 5232370, 10464740, 20929480]

約数ペア:

[(1, 20929480), (2, 10464740), (4, 5232370), (5, 4185896), (8, 2616185), (10, 2092948), (11, 1902680), (13, 1609960), (20, 1046474), (22, 951340), (26, 804980), (40, 523237), (44, 475670), (52, 402490), (55, 380536), (65, 321992), (88, 237835), (104, 201245), (110, 190268), (130, 160996), (143, 146360), (220, 95134), (260, 80498), (286, 73180), (440, 47567), (520, 40249), (572, 36590), (715, 29272), (1144, 18295), (1430, 14636), (2860, 7318), (3659, 5720)]