131608980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2351}}^1$

素因数の和:2677

約数の個数: 72

約数和(自身を含む): 400667904

約数和(自身を除く): 269058924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1555, 1866, 2351, 2799, 3110, 3732, 4665, 4702, 5598, 6220, 7053, 9330, 9404, 11196, 11755, 13995, 14106, 18660, 21159, 23510, 27990, 28212, 35265, 42318, 47020, 55980, 70530, 84636, 105795, 141060, 211590, 423180, 731161, 1462322, 2193483, 2924644, 3655805, 4386966, 6580449, 7311610, 8773932, 10967415, 13160898, 14623220, 21934830, 26321796, 32902245, 43869660, 65804490, 131608980]

約数ペア:

[(1, 131608980), (2, 65804490), (3, 43869660), (4, 32902245), (5, 26321796), (6, 21934830), (9, 14623220), (10, 13160898), (12, 10967415), (15, 8773932), (18, 7311610), (20, 6580449), (30, 4386966), (36, 3655805), (45, 2924644), (60, 2193483), (90, 1462322), (180, 731161), (311, 423180), (622, 211590), (933, 141060), (1244, 105795), (1555, 84636), (1866, 70530), (2351, 55980), (2799, 47020), (3110, 42318), (3732, 35265), (4665, 28212), (4702, 27990), (5598, 23510), (6220, 21159), (7053, 18660), (9330, 14106), (9404, 13995), (11196, 11755)]