19089950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 39439440

約数和(自身を除く): 20349490

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 61, 110, 122, 275, 305, 550, 569, 610, 671, 1138, 1342, 1525, 2845, 3050, 3355, 5690, 6259, 6710, 12518, 14225, 16775, 28450, 31295, 33550, 34709, 62590, 69418, 156475, 173545, 312950, 347090, 381799, 763598, 867725, 1735450, 1908995, 3817990, 9544975, 19089950]

約数ペア:

[(1, 19089950), (2, 9544975), (5, 3817990), (10, 1908995), (11, 1735450), (22, 867725), (25, 763598), (50, 381799), (55, 347090), (61, 312950), (110, 173545), (122, 156475), (275, 69418), (305, 62590), (550, 34709), (569, 33550), (610, 31295), (671, 28450), (1138, 16775), (1342, 14225), (1525, 12518), (2845, 6710), (3050, 6259), (3355, 5690)]