20645196

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 37270452

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 53, 66, 78, 106, 132, 143, 156, 159, 212, 227, 286, 318, 429, 454, 572, 583, 636, 681, 689, 858, 908, 1166, 1362, 1378, 1716, 1749, 2067, 2332, 2497, 2724, 2756, 2951, 3498, 4134, 4994, 5902, 6996, 7491, 7579, 8268, 8853, 9988, 11804, 12031, 14982, 15158, 17706, 22737, 24062, 29964, 30316, 32461, 35412, 36093, 45474, 48124, 64922, 72186, 90948, 97383, 129844, 132341, 144372, 156403, 194766, 264682, 312806, 389532, 397023, 469209, 529364, 625612, 794046, 938418, 1588092, 1720433, 1876836, 3440866, 5161299, 6881732, 10322598, 20645196]

約数ペア:

[(1, 20645196), (2, 10322598), (3, 6881732), (4, 5161299), (6, 3440866), (11, 1876836), (12, 1720433), (13, 1588092), (22, 938418), (26, 794046), (33, 625612), (39, 529364), (44, 469209), (52, 397023), (53, 389532), (66, 312806), (78, 264682), (106, 194766), (132, 156403), (143, 144372), (156, 132341), (159, 129844), (212, 97383), (227, 90948), (286, 72186), (318, 64922), (429, 48124), (454, 45474), (572, 36093), (583, 35412), (636, 32461), (681, 30316), (689, 29964), (858, 24062), (908, 22737), (1166, 17706), (1362, 15158), (1378, 14982), (1716, 12031), (1749, 11804), (2067, 9988), (2332, 8853), (2497, 8268), (2724, 7579), (2756, 7491), (2951, 6996), (3498, 5902), (4134, 4994)]