18187920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{25261}}^1$

素因数の和:25280

約数の個数: 60

約数和(自身を含む): 61083516

約数和(自身を除く): 42895596

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 25261, 50522, 75783, 101044, 126305, 151566, 202088, 227349, 252610, 303132, 378915, 404176, 454698, 505220, 606264, 757830, 909396, 1010440, 1136745, 1212528, 1515660, 1818792, 2020880, 2273490, 3031320, 3637584, 4546980, 6062640, 9093960, 18187920]

約数ペア:

[(1, 18187920), (2, 9093960), (3, 6062640), (4, 4546980), (5, 3637584), (6, 3031320), (8, 2273490), (9, 2020880), (10, 1818792), (12, 1515660), (15, 1212528), (16, 1136745), (18, 1010440), (20, 909396), (24, 757830), (30, 606264), (36, 505220), (40, 454698), (45, 404176), (48, 378915), (60, 303132), (72, 252610), (80, 227349), (90, 202088), (120, 151566), (144, 126305), (180, 101044), (240, 75783), (360, 50522), (720, 25261)]