31998200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 82911360

約数和(自身を除く): 50913160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 130, 155, 200, 248, 260, 310, 325, 397, 403, 520, 620, 650, 775, 794, 806, 1240, 1300, 1550, 1588, 1612, 1985, 2015, 2600, 3100, 3176, 3224, 3970, 4030, 5161, 6200, 7940, 8060, 9925, 10075, 10322, 12307, 15880, 16120, 19850, 20150, 20644, 24614, 25805, 39700, 40300, 41288, 49228, 51610, 61535, 79400, 80600, 98456, 103220, 123070, 129025, 159991, 206440, 246140, 258050, 307675, 319982, 492280, 516100, 615350, 639964, 799955, 1032200, 1230700, 1279928, 1599910, 2461400, 3199820, 3999775, 6399640, 7999550, 15999100, 31998200]

約数ペア:

[(1, 31998200), (2, 15999100), (4, 7999550), (5, 6399640), (8, 3999775), (10, 3199820), (13, 2461400), (20, 1599910), (25, 1279928), (26, 1230700), (31, 1032200), (40, 799955), (50, 639964), (52, 615350), (62, 516100), (65, 492280), (100, 319982), (104, 307675), (124, 258050), (130, 246140), (155, 206440), (200, 159991), (248, 129025), (260, 123070), (310, 103220), (325, 98456), (397, 80600), (403, 79400), (520, 61535), (620, 51610), (650, 49228), (775, 41288), (794, 40300), (806, 39700), (1240, 25805), (1300, 24614), (1550, 20644), (1588, 20150), (1612, 19850), (1985, 16120), (2015, 15880), (2600, 12307), (3100, 10322), (3176, 10075), (3224, 9925), (3970, 8060), (4030, 7940), (5161, 6200)]