1800009840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{394739}}^1$

素因数の和:394774

約数の個数: 80

約数和(自身を含む): 5873731200

約数和(自身を除く): 4073721360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 394739, 789478, 1184217, 1578956, 1973695, 2368434, 3157912, 3947390, 4736868, 5921085, 6315824, 7500041, 7894780, 9473736, 11842170, 15000082, 15789560, 18947472, 22500123, 23684340, 30000164, 31579120, 37500205, 45000246, 47368680, 60000328, 75000410, 90000492, 94737360, 112500615, 120000656, 150000820, 180000984, 225001230, 300001640, 360001968, 450002460, 600003280, 900004920, 1800009840]

約数ペア:

[(1, 1800009840), (2, 900004920), (3, 600003280), (4, 450002460), (5, 360001968), (6, 300001640), (8, 225001230), (10, 180000984), (12, 150000820), (15, 120000656), (16, 112500615), (19, 94737360), (20, 90000492), (24, 75000410), (30, 60000328), (38, 47368680), (40, 45000246), (48, 37500205), (57, 31579120), (60, 30000164), (76, 23684340), (80, 22500123), (95, 18947472), (114, 15789560), (120, 15000082), (152, 11842170), (190, 9473736), (228, 7894780), (240, 7500041), (285, 6315824), (304, 5921085), (380, 4736868), (456, 3947390), (570, 3157912), (760, 2368434), (912, 1973695), (1140, 1578956), (1520, 1184217), (2280, 789478), (4560, 394739)]