30990700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 74856320

約数和(自身を除く): 43865620

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, 769, 775, 806, 1300, 1538, 1550, 1612, 2015, 3076, 3100, 3845, 4030, 7690, 8060, 9997, 10075, 15380, 19225, 19994, 20150, 23839, 38450, 39988, 40300, 47678, 49985, 76900, 95356, 99970, 119195, 199940, 238390, 249925, 309907, 476780, 499850, 595975, 619814, 999700, 1191950, 1239628, 1549535, 2383900, 3099070, 6198140, 7747675, 15495350, 30990700]

約数ペア:

[(1, 30990700), (2, 15495350), (4, 7747675), (5, 6198140), (10, 3099070), (13, 2383900), (20, 1549535), (25, 1239628), (26, 1191950), (31, 999700), (50, 619814), (52, 595975), (62, 499850), (65, 476780), (100, 309907), (124, 249925), (130, 238390), (155, 199940), (260, 119195), (310, 99970), (325, 95356), (403, 76900), (620, 49985), (650, 47678), (769, 40300), (775, 39988), (806, 38450), (1300, 23839), (1538, 20150), (1550, 19994), (1612, 19225), (2015, 15380), (3076, 10075), (3100, 9997), (3845, 8060), (4030, 7690)]