890320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 2142720

約数和(自身を除く): 1252400

約数列:

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

約数ペア:

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