222390280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25621}}^1$

素因数の和:25670

約数の個数: 64

約数和(自身を含む): 590330880

約数和(自身を除く): 367940600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 25621, 51242, 102484, 128105, 179347, 204968, 256210, 358694, 512420, 717388, 794251, 896735, 1024840, 1434776, 1588502, 1793470, 3177004, 3586940, 3971255, 5559757, 6354008, 7173880, 7942510, 11119514, 15885020, 22239028, 27798785, 31770040, 44478056, 55597570, 111195140, 222390280]

約数ペア:

[(1, 222390280), (2, 111195140), (4, 55597570), (5, 44478056), (7, 31770040), (8, 27798785), (10, 22239028), (14, 15885020), (20, 11119514), (28, 7942510), (31, 7173880), (35, 6354008), (40, 5559757), (56, 3971255), (62, 3586940), (70, 3177004), (124, 1793470), (140, 1588502), (155, 1434776), (217, 1024840), (248, 896735), (280, 794251), (310, 717388), (434, 512420), (620, 358694), (868, 256210), (1085, 204968), (1240, 179347), (1736, 128105), (2170, 102484), (4340, 51242), (8680, 25621)]