20727210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1215

約数の個数: 64

約数和(自身を含む): 57542400

約数和(自身を除く): 36815190

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 89, 105, 178, 210, 267, 445, 534, 623, 890, 1109, 1246, 1335, 1869, 2218, 2670, 3115, 3327, 3738, 5545, 6230, 6654, 7763, 9345, 11090, 15526, 16635, 18690, 23289, 33270, 38815, 46578, 77630, 98701, 116445, 197402, 232890, 296103, 493505, 592206, 690907, 987010, 1381814, 1480515, 2072721, 2961030, 3454535, 4145442, 6909070, 10363605, 20727210]

約数ペア:

[(1, 20727210), (2, 10363605), (3, 6909070), (5, 4145442), (6, 3454535), (7, 2961030), (10, 2072721), (14, 1480515), (15, 1381814), (21, 987010), (30, 690907), (35, 592206), (42, 493505), (70, 296103), (89, 232890), (105, 197402), (178, 116445), (210, 98701), (267, 77630), (445, 46578), (534, 38815), (623, 33270), (890, 23289), (1109, 18690), (1246, 16635), (1335, 15526), (1869, 11090), (2218, 9345), (2670, 7763), (3115, 6654), (3327, 6230), (3738, 5545)]