4359220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 9676800

約数和(自身を除く): 5317580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 89, 124, 155, 158, 178, 310, 316, 356, 395, 445, 620, 790, 890, 1580, 1780, 2449, 2759, 4898, 5518, 7031, 9796, 11036, 12245, 13795, 14062, 24490, 27590, 28124, 35155, 48980, 55180, 70310, 140620, 217961, 435922, 871844, 1089805, 2179610, 4359220]

約数ペア:

[(1, 4359220), (2, 2179610), (4, 1089805), (5, 871844), (10, 435922), (20, 217961), (31, 140620), (62, 70310), (79, 55180), (89, 48980), (124, 35155), (155, 28124), (158, 27590), (178, 24490), (310, 14062), (316, 13795), (356, 12245), (395, 11036), (445, 9796), (620, 7031), (790, 5518), (890, 4898), (1580, 2759), (1780, 2449)]