81621450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5851}}^1$

素因数の和:5900

約数の個数: 72

約数和(自身を含む): 226402176

約数和(自身を除く): 144780726

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 62, 75, 90, 93, 150, 155, 186, 225, 279, 310, 450, 465, 558, 775, 930, 1395, 1550, 2325, 2790, 4650, 5851, 6975, 11702, 13950, 17553, 29255, 35106, 52659, 58510, 87765, 105318, 146275, 175530, 181381, 263295, 292550, 362762, 438825, 526590, 544143, 877650, 906905, 1088286, 1316475, 1632429, 1813810, 2632950, 2720715, 3264858, 4534525, 5441430, 8162145, 9069050, 13603575, 16324290, 27207150, 40810725, 81621450]

約数ペア:

[(1, 81621450), (2, 40810725), (3, 27207150), (5, 16324290), (6, 13603575), (9, 9069050), (10, 8162145), (15, 5441430), (18, 4534525), (25, 3264858), (30, 2720715), (31, 2632950), (45, 1813810), (50, 1632429), (62, 1316475), (75, 1088286), (90, 906905), (93, 877650), (150, 544143), (155, 526590), (186, 438825), (225, 362762), (279, 292550), (310, 263295), (450, 181381), (465, 175530), (558, 146275), (775, 105318), (930, 87765), (1395, 58510), (1550, 52659), (2325, 35106), (2790, 29255), (4650, 17553), (5851, 13950), (6975, 11702)]