1861240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 4608000

約数和(自身を除く): 2746760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 79, 95, 124, 152, 155, 158, 190, 248, 310, 316, 380, 395, 589, 620, 632, 760, 790, 1178, 1240, 1501, 1580, 2356, 2449, 2945, 3002, 3160, 4712, 4898, 5890, 6004, 7505, 9796, 11780, 12008, 12245, 15010, 19592, 23560, 24490, 30020, 46531, 48980, 60040, 93062, 97960, 186124, 232655, 372248, 465310, 930620, 1861240]

約数ペア:

[(1, 1861240), (2, 930620), (4, 465310), (5, 372248), (8, 232655), (10, 186124), (19, 97960), (20, 93062), (31, 60040), (38, 48980), (40, 46531), (62, 30020), (76, 24490), (79, 23560), (95, 19592), (124, 15010), (152, 12245), (155, 12008), (158, 11780), (190, 9796), (248, 7505), (310, 6004), (316, 5890), (380, 4898), (395, 4712), (589, 3160), (620, 3002), (632, 2945), (760, 2449), (790, 2356), (1178, 1580), (1240, 1501)]