123215175

素因数分解:

$3^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:950

約数の個数: 60

約数和(自身を含む): 231721776

約数和(自身を除く): 108506601

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 355, 405, 639, 675, 857, 1065, 1775, 1917, 2025, 2571, 3195, 4285, 5325, 5751, 7713, 9585, 12855, 15975, 21425, 23139, 28755, 38565, 47925, 60847, 64275, 69417, 115695, 143775, 182541, 192825, 304235, 347085, 547623, 578475, 912705, 1521175, 1642869, 1735425, 2738115, 4563525, 4928607, 8214345, 13690575, 24643035, 41071725, 123215175]

約数ペア:

[(1, 123215175), (3, 41071725), (5, 24643035), (9, 13690575), (15, 8214345), (25, 4928607), (27, 4563525), (45, 2738115), (71, 1735425), (75, 1642869), (81, 1521175), (135, 912705), (213, 578475), (225, 547623), (355, 347085), (405, 304235), (639, 192825), (675, 182541), (857, 143775), (1065, 115695), (1775, 69417), (1917, 64275), (2025, 60847), (2571, 47925), (3195, 38565), (4285, 28755), (5325, 23139), (5751, 21425), (7713, 15975), (9585, 12855)]