20025690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 50568192

約数和(自身を除く): 30542502

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 61, 62, 93, 122, 155, 183, 186, 305, 310, 353, 366, 465, 610, 706, 915, 930, 1059, 1765, 1830, 1891, 2118, 3530, 3782, 5295, 5673, 9455, 10590, 10943, 11346, 18910, 21533, 21886, 28365, 32829, 43066, 54715, 56730, 64599, 65658, 107665, 109430, 129198, 164145, 215330, 322995, 328290, 645990, 667523, 1335046, 2002569, 3337615, 4005138, 6675230, 10012845, 20025690]

約数ペア:

[(1, 20025690), (2, 10012845), (3, 6675230), (5, 4005138), (6, 3337615), (10, 2002569), (15, 1335046), (30, 667523), (31, 645990), (61, 328290), (62, 322995), (93, 215330), (122, 164145), (155, 129198), (183, 109430), (186, 107665), (305, 65658), (310, 64599), (353, 56730), (366, 54715), (465, 43066), (610, 32829), (706, 28365), (915, 21886), (930, 21533), (1059, 18910), (1765, 11346), (1830, 10943), (1891, 10590), (2118, 9455), (3530, 5673), (3782, 5295)]