20742228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 40898988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 41, 46, 47, 52, 69, 78, 82, 92, 94, 117, 123, 138, 141, 156, 164, 188, 207, 234, 246, 276, 282, 299, 369, 414, 423, 468, 492, 533, 564, 598, 611, 738, 828, 846, 897, 943, 1066, 1081, 1196, 1222, 1476, 1599, 1692, 1794, 1833, 1886, 1927, 2132, 2162, 2444, 2691, 2829, 3198, 3243, 3588, 3666, 3772, 3854, 4324, 4797, 5382, 5499, 5658, 5781, 6396, 6486, 7332, 7708, 8487, 9594, 9729, 10764, 10998, 11316, 11562, 12259, 12972, 14053, 16974, 17343, 19188, 19458, 21996, 23124, 24518, 25051, 28106, 33948, 34686, 36777, 38916, 42159, 44321, 49036, 50102, 56212, 69372, 73554, 75153, 84318, 88642, 100204, 110331, 126477, 132963, 147108, 150306, 168636, 177284, 220662, 225459, 252954, 265926, 300612, 398889, 441324, 450918, 505908, 531852, 576173, 797778, 901836, 1152346, 1595556, 1728519, 2304692, 3457038, 5185557, 6914076, 10371114, 20742228]

約数ペア:

[(1, 20742228), (2, 10371114), (3, 6914076), (4, 5185557), (6, 3457038), (9, 2304692), (12, 1728519), (13, 1595556), (18, 1152346), (23, 901836), (26, 797778), (36, 576173), (39, 531852), (41, 505908), (46, 450918), (47, 441324), (52, 398889), (69, 300612), (78, 265926), (82, 252954), (92, 225459), (94, 220662), (117, 177284), (123, 168636), (138, 150306), (141, 147108), (156, 132963), (164, 126477), (188, 110331), (207, 100204), (234, 88642), (246, 84318), (276, 75153), (282, 73554), (299, 69372), (369, 56212), (414, 50102), (423, 49036), (468, 44321), (492, 42159), (533, 38916), (564, 36777), (598, 34686), (611, 33948), (738, 28106), (828, 25051), (846, 24518), (897, 23124), (943, 21996), (1066, 19458), (1081, 19188), (1196, 17343), (1222, 16974), (1476, 14053), (1599, 12972), (1692, 12259), (1794, 11562), (1833, 11316), (1886, 10998), (1927, 10764), (2132, 9729), (2162, 9594), (2444, 8487), (2691, 7708), (2829, 7332), (3198, 6486), (3243, 6396), (3588, 5781), (3666, 5658), (3772, 5499), (3854, 5382), (4324, 4797)]