31880520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{4217}}^1$

素因数の和:4244

約数の個数: 128

約数和(自身を含む): 121478400

約数和(自身を除く): 89597880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 4217, 7560, 8434, 12651, 16868, 21085, 25302, 29519, 33736, 37953, 42170, 50604, 59038, 63255, 75906, 84340, 88557, 101208, 113859, 118076, 126510, 147595, 151812, 168680, 177114, 189765, 227718, 236152, 253020, 265671, 295190, 303624, 354228, 379530, 442785, 455436, 506040, 531342, 569295, 590380, 708456, 759060, 797013, 885570, 910872, 1062684, 1138590, 1180760, 1328355, 1518120, 1594026, 1771140, 2125368, 2277180, 2656710, 3188052, 3542280, 3985065, 4554360, 5313420, 6376104, 7970130, 10626840, 15940260, 31880520]

約数ペア:

[(1, 31880520), (2, 15940260), (3, 10626840), (4, 7970130), (5, 6376104), (6, 5313420), (7, 4554360), (8, 3985065), (9, 3542280), (10, 3188052), (12, 2656710), (14, 2277180), (15, 2125368), (18, 1771140), (20, 1594026), (21, 1518120), (24, 1328355), (27, 1180760), (28, 1138590), (30, 1062684), (35, 910872), (36, 885570), (40, 797013), (42, 759060), (45, 708456), (54, 590380), (56, 569295), (60, 531342), (63, 506040), (70, 455436), (72, 442785), (84, 379530), (90, 354228), (105, 303624), (108, 295190), (120, 265671), (126, 253020), (135, 236152), (140, 227718), (168, 189765), (180, 177114), (189, 168680), (210, 151812), (216, 147595), (252, 126510), (270, 118076), (280, 113859), (315, 101208), (360, 88557), (378, 84340), (420, 75906), (504, 63255), (540, 59038), (630, 50604), (756, 42170), (840, 37953), (945, 33736), (1080, 29519), (1260, 25302), (1512, 21085), (1890, 16868), (2520, 12651), (3780, 8434), (4217, 7560)]