19717060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 29271740

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 53, 55, 76, 89, 95, 106, 110, 178, 190, 209, 212, 220, 265, 356, 380, 418, 445, 530, 583, 836, 890, 979, 1007, 1045, 1060, 1166, 1691, 1780, 1958, 2014, 2090, 2332, 2915, 3382, 3916, 4028, 4180, 4717, 4895, 5035, 5830, 6764, 8455, 9434, 9790, 10070, 11077, 11660, 16910, 18601, 18868, 19580, 20140, 22154, 23585, 33820, 37202, 44308, 47170, 51887, 55385, 74404, 89623, 93005, 94340, 103774, 110770, 179246, 186010, 207548, 221540, 259435, 358492, 372020, 448115, 518870, 896230, 985853, 1037740, 1792460, 1971706, 3943412, 4929265, 9858530, 19717060]

約数ペア:

[(1, 19717060), (2, 9858530), (4, 4929265), (5, 3943412), (10, 1971706), (11, 1792460), (19, 1037740), (20, 985853), (22, 896230), (38, 518870), (44, 448115), (53, 372020), (55, 358492), (76, 259435), (89, 221540), (95, 207548), (106, 186010), (110, 179246), (178, 110770), (190, 103774), (209, 94340), (212, 93005), (220, 89623), (265, 74404), (356, 55385), (380, 51887), (418, 47170), (445, 44308), (530, 37202), (583, 33820), (836, 23585), (890, 22154), (979, 20140), (1007, 19580), (1045, 18868), (1060, 18601), (1166, 16910), (1691, 11660), (1780, 11077), (1958, 10070), (2014, 9790), (2090, 9434), (2332, 8455), (2915, 6764), (3382, 5830), (3916, 5035), (4028, 4895), (4180, 4717)]