20530880

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{773}}^1$

素因数の和:873

約数の個数: 56

約数和(自身を含む): 49542192

約数和(自身を除く): 29011312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 773, 830, 1328, 1546, 1660, 2656, 3092, 3320, 3865, 5312, 6184, 6640, 7730, 12368, 13280, 15460, 24736, 26560, 30920, 49472, 61840, 64159, 123680, 128318, 247360, 256636, 320795, 513272, 641590, 1026544, 1283180, 2053088, 2566360, 4106176, 5132720, 10265440, 20530880]

約数ペア:

[(1, 20530880), (2, 10265440), (4, 5132720), (5, 4106176), (8, 2566360), (10, 2053088), (16, 1283180), (20, 1026544), (32, 641590), (40, 513272), (64, 320795), (80, 256636), (83, 247360), (160, 128318), (166, 123680), (320, 64159), (332, 61840), (415, 49472), (664, 30920), (773, 26560), (830, 24736), (1328, 15460), (1546, 13280), (1660, 12368), (2656, 7730), (3092, 6640), (3320, 6184), (3865, 5312)]