80121720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{95383}}^1$

素因数の和:95404

約数の個数: 64

約数和(自身を含む): 274705920

約数和(自身を除く): 194584200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 95383, 190766, 286149, 381532, 476915, 572298, 667681, 763064, 953830, 1144596, 1335362, 1430745, 1907660, 2003043, 2289192, 2670724, 2861490, 3338405, 3815320, 4006086, 5341448, 5722980, 6676810, 8012172, 10015215, 11445960, 13353620, 16024344, 20030430, 26707240, 40060860, 80121720]

約数ペア:

[(1, 80121720), (2, 40060860), (3, 26707240), (4, 20030430), (5, 16024344), (6, 13353620), (7, 11445960), (8, 10015215), (10, 8012172), (12, 6676810), (14, 5722980), (15, 5341448), (20, 4006086), (21, 3815320), (24, 3338405), (28, 2861490), (30, 2670724), (35, 2289192), (40, 2003043), (42, 1907660), (56, 1430745), (60, 1335362), (70, 1144596), (84, 953830), (105, 763064), (120, 667681), (140, 572298), (168, 476915), (210, 381532), (280, 286149), (420, 190766), (840, 95383)]