12242840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 29484000

約数和(自身を除く): 17241160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 181, 190, 356, 362, 380, 445, 712, 724, 760, 890, 905, 1448, 1691, 1780, 1810, 3382, 3439, 3560, 3620, 6764, 6878, 7240, 8455, 13528, 13756, 16109, 16910, 17195, 27512, 32218, 33820, 34390, 64436, 67640, 68780, 80545, 128872, 137560, 161090, 306071, 322180, 612142, 644360, 1224284, 1530355, 2448568, 3060710, 6121420, 12242840]

約数ペア:

[(1, 12242840), (2, 6121420), (4, 3060710), (5, 2448568), (8, 1530355), (10, 1224284), (19, 644360), (20, 612142), (38, 322180), (40, 306071), (76, 161090), (89, 137560), (95, 128872), (152, 80545), (178, 68780), (181, 67640), (190, 64436), (356, 34390), (362, 33820), (380, 32218), (445, 27512), (712, 17195), (724, 16910), (760, 16109), (890, 13756), (905, 13528), (1448, 8455), (1691, 7240), (1780, 6878), (1810, 6764), (3382, 3620), (3439, 3560)]