16780455

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 31389696

約数和(自身を除く): 14609241

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 523, 713, 1035, 1395, 1569, 2139, 2615, 3565, 4707, 6417, 7845, 10695, 12029, 16213, 23535, 32085, 36087, 48639, 60145, 81065, 108261, 145917, 180435, 243195, 372899, 541305, 729585, 1118697, 1864495, 3356091, 5593485, 16780455]

約数ペア:

[(1, 16780455), (3, 5593485), (5, 3356091), (9, 1864495), (15, 1118697), (23, 729585), (31, 541305), (45, 372899), (69, 243195), (93, 180435), (115, 145917), (155, 108261), (207, 81065), (279, 60145), (345, 48639), (465, 36087), (523, 32085), (713, 23535), (1035, 16213), (1395, 12029), (1569, 10695), (2139, 7845), (2615, 6417), (3565, 4707)]