74387880

素因数分解:

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

素因数の和:4248

約数の個数: 144

約数和(自身を含む): 281298420

約数和(自身を除く): 206910540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4217, 4410, 5880, 8434, 8820, 12651, 16868, 17640, 21085, 25302, 29519, 33736, 37953, 42170, 50604, 59038, 63255, 75906, 84340, 88557, 101208, 118076, 126510, 147595, 151812, 168680, 177114, 189765, 206633, 236152, 253020, 265671, 295190, 303624, 354228, 379530, 413266, 442785, 506040, 531342, 590380, 619899, 708456, 759060, 826532, 885570, 1033165, 1062684, 1180760, 1239798, 1328355, 1518120, 1653064, 1771140, 1859697, 2066330, 2125368, 2479596, 2656710, 3099495, 3542280, 3719394, 4132660, 4959192, 5313420, 6198990, 7438788, 8265320, 9298485, 10626840, 12397980, 14877576, 18596970, 24795960, 37193940, 74387880]

約数ペア:

[(1, 74387880), (2, 37193940), (3, 24795960), (4, 18596970), (5, 14877576), (6, 12397980), (7, 10626840), (8, 9298485), (9, 8265320), (10, 7438788), (12, 6198990), (14, 5313420), (15, 4959192), (18, 4132660), (20, 3719394), (21, 3542280), (24, 3099495), (28, 2656710), (30, 2479596), (35, 2125368), (36, 2066330), (40, 1859697), (42, 1771140), (45, 1653064), (49, 1518120), (56, 1328355), (60, 1239798), (63, 1180760), (70, 1062684), (72, 1033165), (84, 885570), (90, 826532), (98, 759060), (105, 708456), (120, 619899), (126, 590380), (140, 531342), (147, 506040), (168, 442785), (180, 413266), (196, 379530), (210, 354228), (245, 303624), (252, 295190), (280, 265671), (294, 253020), (315, 236152), (360, 206633), (392, 189765), (420, 177114), (441, 168680), (490, 151812), (504, 147595), (588, 126510), (630, 118076), (735, 101208), (840, 88557), (882, 84340), (980, 75906), (1176, 63255), (1260, 59038), (1470, 50604), (1764, 42170), (1960, 37953), (2205, 33736), (2520, 29519), (2940, 25302), (3528, 21085), (4217, 17640), (4410, 16868), (5880, 12651), (8434, 8820)]