40172580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31883}}^1$

素因数の和:31905

約数の個数: 72

約数和(自身を含む): 139269312

約数和(自身を除く): 99096732

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 31883, 63766, 95649, 127532, 159415, 191298, 223181, 286947, 318830, 382596, 446362, 478245, 573894, 637660, 669543, 892724, 956490, 1115905, 1147788, 1339086, 1434735, 1912980, 2008629, 2231810, 2678172, 2869470, 3347715, 4017258, 4463620, 5738940, 6695430, 8034516, 10043145, 13390860, 20086290, 40172580]

約数ペア:

[(1, 40172580), (2, 20086290), (3, 13390860), (4, 10043145), (5, 8034516), (6, 6695430), (7, 5738940), (9, 4463620), (10, 4017258), (12, 3347715), (14, 2869470), (15, 2678172), (18, 2231810), (20, 2008629), (21, 1912980), (28, 1434735), (30, 1339086), (35, 1147788), (36, 1115905), (42, 956490), (45, 892724), (60, 669543), (63, 637660), (70, 573894), (84, 478245), (90, 446362), (105, 382596), (126, 318830), (140, 286947), (180, 223181), (210, 191298), (252, 159415), (315, 127532), (420, 95649), (630, 63766), (1260, 31883)]