20283520

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:833

約数の個数: 64

約数和(自身を含む): 49737240

約数和(自身を除く): 29453720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 773, 820, 1312, 1546, 1640, 2624, 3092, 3280, 3865, 5248, 6184, 6560, 7730, 12368, 13120, 15460, 24736, 26240, 30920, 31693, 49472, 61840, 63386, 98944, 123680, 126772, 158465, 247360, 253544, 316930, 494720, 507088, 633860, 1014176, 1267720, 2028352, 2535440, 4056704, 5070880, 10141760, 20283520]

約数ペア:

[(1, 20283520), (2, 10141760), (4, 5070880), (5, 4056704), (8, 2535440), (10, 2028352), (16, 1267720), (20, 1014176), (32, 633860), (40, 507088), (41, 494720), (64, 316930), (80, 253544), (82, 247360), (128, 158465), (160, 126772), (164, 123680), (205, 98944), (320, 63386), (328, 61840), (410, 49472), (640, 31693), (656, 30920), (773, 26240), (820, 24736), (1312, 15460), (1546, 13120), (1640, 12368), (2624, 7730), (3092, 6560), (3280, 6184), (3865, 5248)]