12985900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 29998080

約数和(自身を除く): 17012180

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 59, 62, 71, 100, 118, 124, 142, 155, 236, 284, 295, 310, 355, 590, 620, 710, 775, 1180, 1420, 1475, 1550, 1775, 1829, 2201, 2950, 3100, 3550, 3658, 4189, 4402, 5900, 7100, 7316, 8378, 8804, 9145, 11005, 16756, 18290, 20945, 22010, 36580, 41890, 44020, 45725, 55025, 83780, 91450, 104725, 110050, 129859, 182900, 209450, 220100, 259718, 418900, 519436, 649295, 1298590, 2597180, 3246475, 6492950, 12985900]

約数ペア:

[(1, 12985900), (2, 6492950), (4, 3246475), (5, 2597180), (10, 1298590), (20, 649295), (25, 519436), (31, 418900), (50, 259718), (59, 220100), (62, 209450), (71, 182900), (100, 129859), (118, 110050), (124, 104725), (142, 91450), (155, 83780), (236, 55025), (284, 45725), (295, 44020), (310, 41890), (355, 36580), (590, 22010), (620, 20945), (710, 18290), (775, 16756), (1180, 11005), (1420, 9145), (1475, 8804), (1550, 8378), (1775, 7316), (1829, 7100), (2201, 5900), (2950, 4402), (3100, 4189), (3550, 3658)]