389901260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89839}}^1$

素因数の和:89886

約数の個数: 48

約数和(自身を含む): 965959680

約数和(自身を除く): 576058420

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, 89839, 179678, 359356, 449195, 628873, 898390, 1257746, 1796780, 2515492, 2785009, 3144365, 5570018, 6288730, 11140036, 12577460, 13925045, 19495063, 27850090, 38990126, 55700180, 77980252, 97475315, 194950630, 389901260]

約数ペア:

[(1, 389901260), (2, 194950630), (4, 97475315), (5, 77980252), (7, 55700180), (10, 38990126), (14, 27850090), (20, 19495063), (28, 13925045), (31, 12577460), (35, 11140036), (62, 6288730), (70, 5570018), (124, 3144365), (140, 2785009), (155, 2515492), (217, 1796780), (310, 1257746), (434, 898390), (620, 628873), (868, 449195), (1085, 359356), (2170, 179678), (4340, 89839)]