31359490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 58054320

約数和(自身を除く): 26694830

約数列:

[1, 2, 5, 10, 61, 101, 122, 202, 305, 505, 509, 610, 1010, 1018, 2545, 5090, 6161, 12322, 30805, 31049, 51409, 61610, 62098, 102818, 155245, 257045, 310490, 514090, 3135949, 6271898, 15679745, 31359490]

約数ペア:

[(1, 31359490), (2, 15679745), (5, 6271898), (10, 3135949), (61, 514090), (101, 310490), (122, 257045), (202, 155245), (305, 102818), (505, 62098), (509, 61610), (610, 51409), (1010, 31049), (1018, 30805), (2545, 12322), (5090, 6161)]