1808950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:70

約数の個数: 72

約数和(自身を含む): 4155984

約数和(自身を除く): 2347034

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 25, 26, 46, 50, 55, 65, 110, 115, 121, 130, 143, 230, 242, 253, 275, 286, 299, 325, 506, 550, 575, 598, 605, 650, 715, 1150, 1210, 1265, 1430, 1495, 1573, 2530, 2783, 2990, 3025, 3146, 3289, 3575, 5566, 6050, 6325, 6578, 7150, 7475, 7865, 12650, 13915, 14950, 15730, 16445, 27830, 32890, 36179, 39325, 69575, 72358, 78650, 82225, 139150, 164450, 180895, 361790, 904475, 1808950]

約数ペア:

[(1, 1808950), (2, 904475), (5, 361790), (10, 180895), (11, 164450), (13, 139150), (22, 82225), (23, 78650), (25, 72358), (26, 69575), (46, 39325), (50, 36179), (55, 32890), (65, 27830), (110, 16445), (115, 15730), (121, 14950), (130, 13915), (143, 12650), (230, 7865), (242, 7475), (253, 7150), (275, 6578), (286, 6325), (299, 6050), (325, 5566), (506, 3575), (550, 3289), (575, 3146), (598, 3025), (605, 2990), (650, 2783), (715, 2530), (1150, 1573), (1210, 1495), (1265, 1430)]