1780640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 4354560

約数和(自身を除く): 2573920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 359, 496, 620, 718, 992, 1240, 1436, 1795, 2480, 2872, 3590, 4960, 5744, 7180, 11129, 11488, 14360, 22258, 28720, 44516, 55645, 57440, 89032, 111290, 178064, 222580, 356128, 445160, 890320, 1780640]

約数ペア:

[(1, 1780640), (2, 890320), (4, 445160), (5, 356128), (8, 222580), (10, 178064), (16, 111290), (20, 89032), (31, 57440), (32, 55645), (40, 44516), (62, 28720), (80, 22258), (124, 14360), (155, 11488), (160, 11129), (248, 7180), (310, 5744), (359, 4960), (496, 3590), (620, 2872), (718, 2480), (992, 1795), (1240, 1436)]