81201900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 258983424

約数和(自身を除く): 177781524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 47, 50, 52, 60, 65, 75, 78, 94, 100, 130, 141, 150, 156, 188, 195, 235, 260, 282, 300, 325, 390, 443, 470, 564, 611, 650, 705, 780, 886, 940, 975, 1175, 1222, 1300, 1329, 1410, 1772, 1833, 1950, 2215, 2350, 2444, 2658, 2820, 3055, 3525, 3666, 3900, 4430, 4700, 5316, 5759, 6110, 6645, 7050, 7332, 8860, 9165, 11075, 11518, 12220, 13290, 14100, 15275, 17277, 18330, 20821, 22150, 23036, 26580, 28795, 30550, 33225, 34554, 36660, 41642, 44300, 45825, 57590, 61100, 62463, 66450, 69108, 83284, 86385, 91650, 104105, 115180, 124926, 132900, 143975, 172770, 183300, 208210, 249852, 270673, 287950, 312315, 345540, 416420, 431925, 520525, 541346, 575900, 624630, 812019, 863850, 1041050, 1082692, 1249260, 1353365, 1561575, 1624038, 1727700, 2082100, 2706730, 3123150, 3248076, 4060095, 5413460, 6246300, 6766825, 8120190, 13533650, 16240380, 20300475, 27067300, 40600950, 81201900]

約数ペア:

[(1, 81201900), (2, 40600950), (3, 27067300), (4, 20300475), (5, 16240380), (6, 13533650), (10, 8120190), (12, 6766825), (13, 6246300), (15, 5413460), (20, 4060095), (25, 3248076), (26, 3123150), (30, 2706730), (39, 2082100), (47, 1727700), (50, 1624038), (52, 1561575), (60, 1353365), (65, 1249260), (75, 1082692), (78, 1041050), (94, 863850), (100, 812019), (130, 624630), (141, 575900), (150, 541346), (156, 520525), (188, 431925), (195, 416420), (235, 345540), (260, 312315), (282, 287950), (300, 270673), (325, 249852), (390, 208210), (443, 183300), (470, 172770), (564, 143975), (611, 132900), (650, 124926), (705, 115180), (780, 104105), (886, 91650), (940, 86385), (975, 83284), (1175, 69108), (1222, 66450), (1300, 62463), (1329, 61100), (1410, 57590), (1772, 45825), (1833, 44300), (1950, 41642), (2215, 36660), (2350, 34554), (2444, 33225), (2658, 30550), (2820, 28795), (3055, 26580), (3525, 23036), (3666, 22150), (3900, 20821), (4430, 18330), (4700, 17277), (5316, 15275), (5759, 14100), (6110, 13290), (6645, 12220), (7050, 11518), (7332, 11075), (8860, 9165)]