28746620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 45280900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 101, 107, 133, 140, 190, 202, 214, 266, 380, 404, 428, 505, 532, 535, 665, 707, 749, 1010, 1070, 1330, 1414, 1498, 1919, 2020, 2033, 2140, 2660, 2828, 2996, 3535, 3745, 3838, 4066, 7070, 7490, 7676, 8132, 9595, 10165, 10807, 13433, 14140, 14231, 14980, 19190, 20330, 21614, 26866, 28462, 38380, 40660, 43228, 53732, 54035, 56924, 67165, 71155, 75649, 108070, 134330, 142310, 151298, 205333, 216140, 268660, 284620, 302596, 378245, 410666, 756490, 821332, 1026665, 1437331, 1512980, 2053330, 2874662, 4106660, 5749324, 7186655, 14373310, 28746620]

約数ペア:

[(1, 28746620), (2, 14373310), (4, 7186655), (5, 5749324), (7, 4106660), (10, 2874662), (14, 2053330), (19, 1512980), (20, 1437331), (28, 1026665), (35, 821332), (38, 756490), (70, 410666), (76, 378245), (95, 302596), (101, 284620), (107, 268660), (133, 216140), (140, 205333), (190, 151298), (202, 142310), (214, 134330), (266, 108070), (380, 75649), (404, 71155), (428, 67165), (505, 56924), (532, 54035), (535, 53732), (665, 43228), (707, 40660), (749, 38380), (1010, 28462), (1070, 26866), (1330, 21614), (1414, 20330), (1498, 19190), (1919, 14980), (2020, 14231), (2033, 14140), (2140, 13433), (2660, 10807), (2828, 10165), (2996, 9595), (3535, 8132), (3745, 7676), (3838, 7490), (4066, 7070)]