156912260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 352812096

約数和(自身を除く): 195899836

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 211, 361, 380, 412, 422, 515, 722, 844, 1030, 1055, 1444, 1805, 1957, 2060, 2110, 3610, 3914, 4009, 4220, 7220, 7828, 8018, 9785, 16036, 19570, 20045, 21733, 37183, 39140, 40090, 43466, 74366, 76171, 80180, 86932, 108665, 148732, 152342, 185915, 217330, 304684, 371830, 380855, 412927, 434660, 743660, 761710, 825854, 1523420, 1651708, 2064635, 4129270, 7845613, 8258540, 15691226, 31382452, 39228065, 78456130, 156912260]

約数ペア:

[(1, 156912260), (2, 78456130), (4, 39228065), (5, 31382452), (10, 15691226), (19, 8258540), (20, 7845613), (38, 4129270), (76, 2064635), (95, 1651708), (103, 1523420), (190, 825854), (206, 761710), (211, 743660), (361, 434660), (380, 412927), (412, 380855), (422, 371830), (515, 304684), (722, 217330), (844, 185915), (1030, 152342), (1055, 148732), (1444, 108665), (1805, 86932), (1957, 80180), (2060, 76171), (2110, 74366), (3610, 43466), (3914, 40090), (4009, 39140), (4220, 37183), (7220, 21733), (7828, 20045), (8018, 19570), (9785, 16036)]