139720100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3467}}^1$

素因数の和:3525

約数の個数: 72

約数和(自身を含む): 337145088

約数和(自身を除く): 197424988

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 3467, 4030, 6934, 8060, 10075, 13868, 17335, 20150, 34670, 40300, 45071, 69340, 86675, 90142, 107477, 173350, 180284, 214954, 225355, 346700, 429908, 450710, 537385, 901420, 1074770, 1126775, 1397201, 2149540, 2253550, 2686925, 2794402, 4507100, 5373850, 5588804, 6986005, 10747700, 13972010, 27944020, 34930025, 69860050, 139720100]

約数ペア:

[(1, 139720100), (2, 69860050), (4, 34930025), (5, 27944020), (10, 13972010), (13, 10747700), (20, 6986005), (25, 5588804), (26, 5373850), (31, 4507100), (50, 2794402), (52, 2686925), (62, 2253550), (65, 2149540), (100, 1397201), (124, 1126775), (130, 1074770), (155, 901420), (260, 537385), (310, 450710), (325, 429908), (403, 346700), (620, 225355), (650, 214954), (775, 180284), (806, 173350), (1300, 107477), (1550, 90142), (1612, 86675), (2015, 69340), (3100, 45071), (3467, 40300), (4030, 34670), (6934, 20150), (8060, 17335), (10075, 13868)]