12921720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{15383}}^1$

素因数の和:15404

約数の個数: 64

約数和(自身を含む): 44305920

約数和(自身を除く): 31384200

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, 15383, 30766, 46149, 61532, 76915, 92298, 107681, 123064, 153830, 184596, 215362, 230745, 307660, 323043, 369192, 430724, 461490, 538405, 615320, 646086, 861448, 922980, 1076810, 1292172, 1615215, 1845960, 2153620, 2584344, 3230430, 4307240, 6460860, 12921720]

約数ペア:

[(1, 12921720), (2, 6460860), (3, 4307240), (4, 3230430), (5, 2584344), (6, 2153620), (7, 1845960), (8, 1615215), (10, 1292172), (12, 1076810), (14, 922980), (15, 861448), (20, 646086), (21, 615320), (24, 538405), (28, 461490), (30, 430724), (35, 369192), (40, 323043), (42, 307660), (56, 230745), (60, 215362), (70, 184596), (84, 153830), (105, 123064), (120, 107681), (140, 92298), (168, 76915), (210, 61532), (280, 46149), (420, 30766), (840, 15383)]