258395540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{32059}}^1$

素因数の和:32112

約数の個数: 48

約数和(自身を含む): 603240960

約数和(自身を除く): 344845420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 32059, 64118, 128236, 160295, 320590, 416767, 641180, 833534, 993829, 1667068, 1987658, 2083835, 3975316, 4167670, 4969145, 8335340, 9938290, 12919777, 19876580, 25839554, 51679108, 64598885, 129197770, 258395540]

約数ペア:

[(1, 258395540), (2, 129197770), (4, 64598885), (5, 51679108), (10, 25839554), (13, 19876580), (20, 12919777), (26, 9938290), (31, 8335340), (52, 4969145), (62, 4167670), (65, 3975316), (124, 2083835), (130, 1987658), (155, 1667068), (260, 993829), (310, 833534), (403, 641180), (620, 416767), (806, 320590), (1612, 160295), (2015, 128236), (4030, 64118), (8060, 32059)]