1220622520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{75721}}^1$

素因数の和:75776

約数の個数: 64

約数和(自身を含む): 3053111040

約数和(自身を除く): 1832488520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 75721, 151442, 302884, 378605, 605768, 757210, 984373, 1514420, 1968746, 2347351, 3028840, 3937492, 4694702, 4921865, 7874984, 9389404, 9843730, 11736755, 18778808, 19687460, 23473510, 30515563, 39374920, 46947020, 61031126, 93894040, 122062252, 152577815, 244124504, 305155630, 610311260, 1220622520]

約数ペア:

[(1, 1220622520), (2, 610311260), (4, 305155630), (5, 244124504), (8, 152577815), (10, 122062252), (13, 93894040), (20, 61031126), (26, 46947020), (31, 39374920), (40, 30515563), (52, 23473510), (62, 19687460), (65, 18778808), (104, 11736755), (124, 9843730), (130, 9389404), (155, 7874984), (248, 4921865), (260, 4694702), (310, 3937492), (403, 3028840), (520, 2347351), (620, 1968746), (806, 1514420), (1240, 984373), (1612, 757210), (2015, 605768), (3224, 378605), (4030, 302884), (8060, 151442), (16120, 75721)]