16406440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 38776320

約数和(自身を除く): 22369880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 131, 155, 202, 248, 262, 310, 404, 505, 524, 620, 655, 808, 1010, 1048, 1240, 1310, 2020, 2620, 3131, 4040, 4061, 5240, 6262, 8122, 12524, 13231, 15655, 16244, 20305, 25048, 26462, 31310, 32488, 40610, 52924, 62620, 66155, 81220, 105848, 125240, 132310, 162440, 264620, 410161, 529240, 820322, 1640644, 2050805, 3281288, 4101610, 8203220, 16406440]

約数ペア:

[(1, 16406440), (2, 8203220), (4, 4101610), (5, 3281288), (8, 2050805), (10, 1640644), (20, 820322), (31, 529240), (40, 410161), (62, 264620), (101, 162440), (124, 132310), (131, 125240), (155, 105848), (202, 81220), (248, 66155), (262, 62620), (310, 52924), (404, 40610), (505, 32488), (524, 31310), (620, 26462), (655, 25048), (808, 20305), (1010, 16244), (1048, 15655), (1240, 13231), (1310, 12524), (2020, 8122), (2620, 6262), (3131, 5240), (4040, 4061)]