139630820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{32173}}^1$

素因数の和:32220

約数の個数: 48

約数和(自身を含む): 345934848

約数和(自身を除く): 206304028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 32173, 64346, 128692, 160865, 225211, 321730, 450422, 643460, 900844, 997363, 1126055, 1994726, 2252110, 3989452, 4504220, 4986815, 6981541, 9973630, 13963082, 19947260, 27926164, 34907705, 69815410, 139630820]

約数ペア:

[(1, 139630820), (2, 69815410), (4, 34907705), (5, 27926164), (7, 19947260), (10, 13963082), (14, 9973630), (20, 6981541), (28, 4986815), (31, 4504220), (35, 3989452), (62, 2252110), (70, 1994726), (124, 1126055), (140, 997363), (155, 900844), (217, 643460), (310, 450422), (434, 321730), (620, 225211), (868, 160865), (1085, 128692), (2170, 64346), (4340, 32173)]