31877720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 89631360

約数和(自身を除く): 57753640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 37, 40, 56, 68, 70, 74, 85, 119, 136, 140, 148, 170, 181, 185, 238, 259, 280, 296, 340, 362, 370, 476, 518, 595, 629, 680, 724, 740, 905, 952, 1036, 1190, 1258, 1267, 1295, 1448, 1480, 1810, 2072, 2380, 2516, 2534, 2590, 3077, 3145, 3620, 4403, 4760, 5032, 5068, 5180, 6154, 6290, 6335, 6697, 7240, 8806, 10136, 10360, 12308, 12580, 12670, 13394, 15385, 17612, 21539, 22015, 24616, 25160, 25340, 26788, 30770, 33485, 35224, 43078, 44030, 46879, 50680, 53576, 61540, 66970, 86156, 88060, 93758, 107695, 113849, 123080, 133940, 172312, 176120, 187516, 215390, 227698, 234395, 267880, 375032, 430780, 455396, 468790, 569245, 796943, 861560, 910792, 937580, 1138490, 1593886, 1875160, 2276980, 3187772, 3984715, 4553960, 6375544, 7969430, 15938860, 31877720]

約数ペア:

[(1, 31877720), (2, 15938860), (4, 7969430), (5, 6375544), (7, 4553960), (8, 3984715), (10, 3187772), (14, 2276980), (17, 1875160), (20, 1593886), (28, 1138490), (34, 937580), (35, 910792), (37, 861560), (40, 796943), (56, 569245), (68, 468790), (70, 455396), (74, 430780), (85, 375032), (119, 267880), (136, 234395), (140, 227698), (148, 215390), (170, 187516), (181, 176120), (185, 172312), (238, 133940), (259, 123080), (280, 113849), (296, 107695), (340, 93758), (362, 88060), (370, 86156), (476, 66970), (518, 61540), (595, 53576), (629, 50680), (680, 46879), (724, 44030), (740, 43078), (905, 35224), (952, 33485), (1036, 30770), (1190, 26788), (1258, 25340), (1267, 25160), (1295, 24616), (1448, 22015), (1480, 21539), (1810, 17612), (2072, 15385), (2380, 13394), (2516, 12670), (2534, 12580), (2590, 12308), (3077, 10360), (3145, 10136), (3620, 8806), (4403, 7240), (4760, 6697), (5032, 6335), (5068, 6290), (5180, 6154)]