31292950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1609

約数の個数: 48

約数和(自身を含む): 64745856

約数和(自身を除く): 33452906

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 1553, 2015, 3106, 4030, 7765, 10075, 15530, 20150, 20189, 38825, 40378, 48143, 77650, 96286, 100945, 201890, 240715, 481430, 504725, 625859, 1009450, 1203575, 1251718, 2407150, 3129295, 6258590, 15646475, 31292950]

約数ペア:

[(1, 31292950), (2, 15646475), (5, 6258590), (10, 3129295), (13, 2407150), (25, 1251718), (26, 1203575), (31, 1009450), (50, 625859), (62, 504725), (65, 481430), (130, 240715), (155, 201890), (310, 100945), (325, 96286), (403, 77650), (650, 48143), (775, 40378), (806, 38825), (1550, 20189), (1553, 20150), (2015, 15530), (3106, 10075), (4030, 7765)]