81621900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1128

約数の個数: 108

約数和(自身を含む): 258967800

約数和(自身を除く): 177345900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 89, 90, 100, 150, 178, 180, 225, 267, 300, 356, 445, 450, 534, 801, 890, 900, 1019, 1068, 1335, 1602, 1780, 2038, 2225, 2670, 3057, 3204, 4005, 4076, 4450, 5095, 5340, 6114, 6675, 8010, 8900, 9171, 10190, 12228, 13350, 15285, 16020, 18342, 20025, 20380, 25475, 26700, 30570, 36684, 40050, 45855, 50950, 61140, 76425, 80100, 90691, 91710, 101900, 152850, 181382, 183420, 229275, 272073, 305700, 362764, 453455, 458550, 544146, 816219, 906910, 917100, 1088292, 1360365, 1632438, 1813820, 2267275, 2720730, 3264876, 4081095, 4534550, 5441460, 6801825, 8162190, 9069100, 13603650, 16324380, 20405475, 27207300, 40810950, 81621900]

約数ペア:

[(1, 81621900), (2, 40810950), (3, 27207300), (4, 20405475), (5, 16324380), (6, 13603650), (9, 9069100), (10, 8162190), (12, 6801825), (15, 5441460), (18, 4534550), (20, 4081095), (25, 3264876), (30, 2720730), (36, 2267275), (45, 1813820), (50, 1632438), (60, 1360365), (75, 1088292), (89, 917100), (90, 906910), (100, 816219), (150, 544146), (178, 458550), (180, 453455), (225, 362764), (267, 305700), (300, 272073), (356, 229275), (445, 183420), (450, 181382), (534, 152850), (801, 101900), (890, 91710), (900, 90691), (1019, 80100), (1068, 76425), (1335, 61140), (1602, 50950), (1780, 45855), (2038, 40050), (2225, 36684), (2670, 30570), (3057, 26700), (3204, 25475), (4005, 20380), (4076, 20025), (4450, 18342), (5095, 16020), (5340, 15285), (6114, 13350), (6675, 12228), (8010, 10190), (8900, 9171)]