18499312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 42219520

約数和(自身を除く): 23720208

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 38, 52, 62, 76, 104, 124, 151, 152, 208, 247, 248, 302, 304, 403, 494, 496, 589, 604, 806, 988, 1178, 1208, 1612, 1963, 1976, 2356, 2416, 2869, 3224, 3926, 3952, 4681, 4712, 5738, 6448, 7657, 7852, 9362, 9424, 11476, 15314, 15704, 18724, 22952, 30628, 31408, 37297, 37448, 45904, 60853, 61256, 74594, 74896, 88939, 121706, 122512, 149188, 177878, 243412, 298376, 355756, 486824, 596752, 711512, 973648, 1156207, 1423024, 2312414, 4624828, 9249656, 18499312]

約数ペア:

[(1, 18499312), (2, 9249656), (4, 4624828), (8, 2312414), (13, 1423024), (16, 1156207), (19, 973648), (26, 711512), (31, 596752), (38, 486824), (52, 355756), (62, 298376), (76, 243412), (104, 177878), (124, 149188), (151, 122512), (152, 121706), (208, 88939), (247, 74896), (248, 74594), (302, 61256), (304, 60853), (403, 45904), (494, 37448), (496, 37297), (589, 31408), (604, 30628), (806, 22952), (988, 18724), (1178, 15704), (1208, 15314), (1612, 11476), (1963, 9424), (1976, 9362), (2356, 7852), (2416, 7657), (2869, 6448), (3224, 5738), (3926, 4712), (3952, 4681)]