81134080

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:837

約数の個数: 80

約数和(自身を含む): 199534104

約数和(自身を除く): 118400024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 640, 656, 773, 820, 1280, 1312, 1546, 1640, 2560, 2624, 3092, 3280, 3865, 5248, 6184, 6560, 7730, 10496, 12368, 13120, 15460, 20992, 24736, 26240, 30920, 31693, 49472, 52480, 61840, 63386, 98944, 104960, 123680, 126772, 158465, 197888, 247360, 253544, 316930, 395776, 494720, 507088, 633860, 989440, 1014176, 1267720, 1978880, 2028352, 2535440, 4056704, 5070880, 8113408, 10141760, 16226816, 20283520, 40567040, 81134080]

約数ペア:

[(1, 81134080), (2, 40567040), (4, 20283520), (5, 16226816), (8, 10141760), (10, 8113408), (16, 5070880), (20, 4056704), (32, 2535440), (40, 2028352), (41, 1978880), (64, 1267720), (80, 1014176), (82, 989440), (128, 633860), (160, 507088), (164, 494720), (205, 395776), (256, 316930), (320, 253544), (328, 247360), (410, 197888), (512, 158465), (640, 126772), (656, 123680), (773, 104960), (820, 98944), (1280, 63386), (1312, 61840), (1546, 52480), (1640, 49472), (2560, 31693), (2624, 30920), (3092, 26240), (3280, 24736), (3865, 20992), (5248, 15460), (6184, 13120), (6560, 12368), (7730, 10496)]