28731980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 63546336

約数和(自身を除く): 34814356

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 740, 820, 947, 1517, 1894, 3034, 3788, 4735, 6068, 7585, 9470, 15170, 18940, 30340, 35039, 38827, 70078, 77654, 140156, 155308, 175195, 194135, 350390, 388270, 700780, 776540, 1436599, 2873198, 5746396, 7182995, 14365990, 28731980]

約数ペア:

[(1, 28731980), (2, 14365990), (4, 7182995), (5, 5746396), (10, 2873198), (20, 1436599), (37, 776540), (41, 700780), (74, 388270), (82, 350390), (148, 194135), (164, 175195), (185, 155308), (205, 140156), (370, 77654), (410, 70078), (740, 38827), (820, 35039), (947, 30340), (1517, 18940), (1894, 15170), (3034, 9470), (3788, 7585), (4735, 6068)]