30903460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3196

約数の個数: 48

約数和(自身を含む): 75237120

約数和(自身を除く): 44333660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 3109, 4970, 6218, 9940, 12436, 15545, 21763, 31090, 43526, 62180, 87052, 108815, 217630, 220739, 435260, 441478, 882956, 1103695, 1545173, 2207390, 3090346, 4414780, 6180692, 7725865, 15451730, 30903460]

約数ペア:

[(1, 30903460), (2, 15451730), (4, 7725865), (5, 6180692), (7, 4414780), (10, 3090346), (14, 2207390), (20, 1545173), (28, 1103695), (35, 882956), (70, 441478), (71, 435260), (140, 220739), (142, 217630), (284, 108815), (355, 87052), (497, 62180), (710, 43526), (994, 31090), (1420, 21763), (1988, 15545), (2485, 12436), (3109, 9940), (4970, 6218)]