18988896710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:726

約数の個数: 128

約数和(自身を含む): 40646707200

約数和(自身を除く): 21657810490

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 89, 106, 131, 178, 262, 265, 371, 439, 445, 530, 623, 655, 742, 878, 890, 917, 1246, 1310, 1834, 1855, 2195, 3073, 3115, 3710, 4390, 4585, 4717, 6146, 6230, 6943, 9170, 9434, 11659, 13886, 15365, 23267, 23318, 23585, 30730, 33019, 34715, 39071, 46534, 47170, 48601, 57509, 58295, 66038, 69430, 78142, 81613, 97202, 115018, 116335, 116590, 162869, 163226, 165095, 195355, 232670, 243005, 273497, 287545, 325738, 330190, 390710, 402563, 408065, 486010, 546994, 575090, 617927, 805126, 814345, 816130, 1235854, 1367485, 1628690, 2012815, 2070763, 2734970, 3047977, 3089635, 4025630, 4141526, 4325489, 5118301, 6095954, 6179270, 8650978, 10236602, 10353815, 14495341, 15239885, 20707630, 21335839, 21627445, 25591505, 28990682, 30479770, 35828107, 42671678, 43254890, 51183010, 71656214, 72476705, 106679195, 144953410, 179140535, 213358390, 271269953, 358281070, 542539906, 1356349765, 1898889671, 2712699530, 3797779342, 9494448355, 18988896710]

約数ペア:

[(1, 18988896710), (2, 9494448355), (5, 3797779342), (7, 2712699530), (10, 1898889671), (14, 1356349765), (35, 542539906), (53, 358281070), (70, 271269953), (89, 213358390), (106, 179140535), (131, 144953410), (178, 106679195), (262, 72476705), (265, 71656214), (371, 51183010), (439, 43254890), (445, 42671678), (530, 35828107), (623, 30479770), (655, 28990682), (742, 25591505), (878, 21627445), (890, 21335839), (917, 20707630), (1246, 15239885), (1310, 14495341), (1834, 10353815), (1855, 10236602), (2195, 8650978), (3073, 6179270), (3115, 6095954), (3710, 5118301), (4390, 4325489), (4585, 4141526), (4717, 4025630), (6146, 3089635), (6230, 3047977), (6943, 2734970), (9170, 2070763), (9434, 2012815), (11659, 1628690), (13886, 1367485), (15365, 1235854), (23267, 816130), (23318, 814345), (23585, 805126), (30730, 617927), (33019, 575090), (34715, 546994), (39071, 486010), (46534, 408065), (47170, 402563), (48601, 390710), (57509, 330190), (58295, 325738), (66038, 287545), (69430, 273497), (78142, 243005), (81613, 232670), (97202, 195355), (115018, 165095), (116335, 163226), (116590, 162869)]