20177664

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 60436992

約数和(自身を除く): 40259328

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 47, 48, 52, 64, 78, 86, 94, 96, 104, 128, 129, 141, 156, 172, 188, 192, 208, 256, 258, 282, 312, 344, 376, 384, 416, 516, 559, 564, 611, 624, 688, 752, 768, 832, 1032, 1118, 1128, 1222, 1248, 1376, 1504, 1664, 1677, 1833, 2021, 2064, 2236, 2256, 2444, 2496, 2752, 3008, 3328, 3354, 3666, 4042, 4128, 4472, 4512, 4888, 4992, 5504, 6016, 6063, 6708, 7332, 8084, 8256, 8944, 9024, 9776, 9984, 11008, 12032, 12126, 13416, 14664, 16168, 16512, 17888, 18048, 19552, 24252, 26273, 26832, 29328, 32336, 33024, 35776, 36096, 39104, 48504, 52546, 53664, 58656, 64672, 71552, 78208, 78819, 97008, 105092, 107328, 117312, 129344, 143104, 156416, 157638, 194016, 210184, 214656, 234624, 258688, 315276, 388032, 420368, 429312, 469248, 517376, 630552, 776064, 840736, 1261104, 1552128, 1681472, 2522208, 3362944, 5044416, 6725888, 10088832, 20177664]

約数ペア:

[(1, 20177664), (2, 10088832), (3, 6725888), (4, 5044416), (6, 3362944), (8, 2522208), (12, 1681472), (13, 1552128), (16, 1261104), (24, 840736), (26, 776064), (32, 630552), (39, 517376), (43, 469248), (47, 429312), (48, 420368), (52, 388032), (64, 315276), (78, 258688), (86, 234624), (94, 214656), (96, 210184), (104, 194016), (128, 157638), (129, 156416), (141, 143104), (156, 129344), (172, 117312), (188, 107328), (192, 105092), (208, 97008), (256, 78819), (258, 78208), (282, 71552), (312, 64672), (344, 58656), (376, 53664), (384, 52546), (416, 48504), (516, 39104), (559, 36096), (564, 35776), (611, 33024), (624, 32336), (688, 29328), (752, 26832), (768, 26273), (832, 24252), (1032, 19552), (1118, 18048), (1128, 17888), (1222, 16512), (1248, 16168), (1376, 14664), (1504, 13416), (1664, 12126), (1677, 12032), (1833, 11008), (2021, 9984), (2064, 9776), (2236, 9024), (2256, 8944), (2444, 8256), (2496, 8084), (2752, 7332), (3008, 6708), (3328, 6063), (3354, 6016), (3666, 5504), (4042, 4992), (4128, 4888), (4472, 4512)]