210815980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{11699}}^1$

素因数の和:11778

約数の個数: 48

約数和(自身を含む): 477640800

約数和(自身を除く): 266824820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 9010, 11699, 18020, 23398, 46796, 58495, 116990, 198883, 233980, 397766, 620047, 795532, 994415, 1240094, 1988830, 2480188, 3100235, 3977660, 6200470, 10540799, 12400940, 21081598, 42163196, 52703995, 105407990, 210815980]

約数ペア:

[(1, 210815980), (2, 105407990), (4, 52703995), (5, 42163196), (10, 21081598), (17, 12400940), (20, 10540799), (34, 6200470), (53, 3977660), (68, 3100235), (85, 2480188), (106, 1988830), (170, 1240094), (212, 994415), (265, 795532), (340, 620047), (530, 397766), (901, 233980), (1060, 198883), (1802, 116990), (3604, 58495), (4505, 46796), (9010, 23398), (11699, 18020)]