18916530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 47029248

約数和(自身を除く): 28112718

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 83, 107, 142, 166, 213, 214, 249, 321, 355, 415, 426, 498, 535, 642, 710, 830, 1065, 1070, 1245, 1605, 2130, 2490, 3210, 5893, 7597, 8881, 11786, 15194, 17679, 17762, 22791, 26643, 29465, 35358, 37985, 44405, 45582, 53286, 58930, 75970, 88395, 88810, 113955, 133215, 176790, 227910, 266430, 630551, 1261102, 1891653, 3152755, 3783306, 6305510, 9458265, 18916530]

約数ペア:

[(1, 18916530), (2, 9458265), (3, 6305510), (5, 3783306), (6, 3152755), (10, 1891653), (15, 1261102), (30, 630551), (71, 266430), (83, 227910), (107, 176790), (142, 133215), (166, 113955), (213, 88810), (214, 88395), (249, 75970), (321, 58930), (355, 53286), (415, 45582), (426, 44405), (498, 37985), (535, 35358), (642, 29465), (710, 26643), (830, 22791), (1065, 17762), (1070, 17679), (1245, 15194), (1605, 11786), (2130, 8881), (2490, 7597), (3210, 5893)]