3989240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 9828000

約数和(自身を除く): 5838760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 181, 190, 232, 290, 362, 380, 551, 580, 724, 760, 905, 1102, 1160, 1448, 1810, 2204, 2755, 3439, 3620, 4408, 5249, 5510, 6878, 7240, 10498, 11020, 13756, 17195, 20996, 22040, 26245, 27512, 34390, 41992, 52490, 68780, 99731, 104980, 137560, 199462, 209960, 398924, 498655, 797848, 997310, 1994620, 3989240]

約数ペア:

[(1, 3989240), (2, 1994620), (4, 997310), (5, 797848), (8, 498655), (10, 398924), (19, 209960), (20, 199462), (29, 137560), (38, 104980), (40, 99731), (58, 68780), (76, 52490), (95, 41992), (116, 34390), (145, 27512), (152, 26245), (181, 22040), (190, 20996), (232, 17195), (290, 13756), (362, 11020), (380, 10498), (551, 7240), (580, 6878), (724, 5510), (760, 5249), (905, 4408), (1102, 3620), (1160, 3439), (1448, 2755), (1810, 2204)]