81798750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{661}}^1$

素因数の和:700

約数の個数: 120

約数和(自身を含む): 241966296

約数和(自身を除く): 160167546

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 125, 150, 165, 198, 225, 250, 275, 330, 375, 450, 495, 550, 625, 661, 750, 825, 990, 1125, 1250, 1322, 1375, 1650, 1875, 1983, 2250, 2475, 2750, 3305, 3750, 3966, 4125, 4950, 5625, 5949, 6610, 6875, 7271, 8250, 9915, 11250, 11898, 12375, 13750, 14542, 16525, 19830, 20625, 21813, 24750, 29745, 33050, 36355, 41250, 43626, 49575, 59490, 61875, 65439, 72710, 82625, 99150, 109065, 123750, 130878, 148725, 165250, 181775, 218130, 247875, 297450, 327195, 363550, 413125, 495750, 545325, 654390, 743625, 826250, 908875, 1090650, 1239375, 1487250, 1635975, 1817750, 2478750, 2726625, 3271950, 3718125, 4544375, 5453250, 7436250, 8179875, 9088750, 13633125, 16359750, 27266250, 40899375, 81798750]

約数ペア:

[(1, 81798750), (2, 40899375), (3, 27266250), (5, 16359750), (6, 13633125), (9, 9088750), (10, 8179875), (11, 7436250), (15, 5453250), (18, 4544375), (22, 3718125), (25, 3271950), (30, 2726625), (33, 2478750), (45, 1817750), (50, 1635975), (55, 1487250), (66, 1239375), (75, 1090650), (90, 908875), (99, 826250), (110, 743625), (125, 654390), (150, 545325), (165, 495750), (198, 413125), (225, 363550), (250, 327195), (275, 297450), (330, 247875), (375, 218130), (450, 181775), (495, 165250), (550, 148725), (625, 130878), (661, 123750), (750, 109065), (825, 99150), (990, 82625), (1125, 72710), (1250, 65439), (1322, 61875), (1375, 59490), (1650, 49575), (1875, 43626), (1983, 41250), (2250, 36355), (2475, 33050), (2750, 29745), (3305, 24750), (3750, 21813), (3966, 20625), (4125, 19830), (4950, 16525), (5625, 14542), (5949, 13750), (6610, 12375), (6875, 11898), (7271, 11250), (8250, 9915)]