80778890

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{881}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 149170896

約数和(自身を除く): 68392006

約数列:

[1, 2, 5, 10, 53, 106, 173, 265, 346, 530, 865, 881, 1730, 1762, 4405, 8810, 9169, 18338, 45845, 46693, 91690, 93386, 152413, 233465, 304826, 466930, 762065, 1524130, 8077889, 16155778, 40389445, 80778890]

約数ペア:

[(1, 80778890), (2, 40389445), (5, 16155778), (10, 8077889), (53, 1524130), (106, 762065), (173, 466930), (265, 304826), (346, 233465), (530, 152413), (865, 93386), (881, 91690), (1730, 46693), (1762, 45845), (4405, 18338), (8810, 9169)]