31511380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 70245504

約数和(自身を除く): 38734124

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 1123, 1220, 1403, 2246, 2806, 4492, 5612, 5615, 7015, 11230, 14030, 22460, 25829, 28060, 51658, 68503, 103316, 129145, 137006, 258290, 274012, 342515, 516580, 685030, 1370060, 1575569, 3151138, 6302276, 7877845, 15755690, 31511380]

約数ペア:

[(1, 31511380), (2, 15755690), (4, 7877845), (5, 6302276), (10, 3151138), (20, 1575569), (23, 1370060), (46, 685030), (61, 516580), (92, 342515), (115, 274012), (122, 258290), (230, 137006), (244, 129145), (305, 103316), (460, 68503), (610, 51658), (1123, 28060), (1220, 25829), (1403, 22460), (2246, 14030), (2806, 11230), (4492, 7015), (5612, 5615)]