19918310960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{349199}}^1$

素因数の和:349266

約数の個数: 80

約数和(自身を含む): 49882521600

約数和(自身を除く): 29964210640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 368, 460, 496, 620, 713, 920, 1240, 1426, 1840, 2480, 2852, 3565, 5704, 7130, 11408, 14260, 28520, 57040, 349199, 698398, 1396796, 1745995, 2793592, 3491990, 5587184, 6983980, 8031577, 10825169, 13967960, 16063154, 21650338, 27935920, 32126308, 40157885, 43300676, 54125845, 64252616, 80315770, 86601352, 108251690, 128505232, 160631540, 173202704, 216503380, 248978887, 321263080, 433006760, 497957774, 642526160, 866013520, 995915548, 1244894435, 1991831096, 2489788870, 3983662192, 4979577740, 9959155480, 19918310960]

約数ペア:

[(1, 19918310960), (2, 9959155480), (4, 4979577740), (5, 3983662192), (8, 2489788870), (10, 1991831096), (16, 1244894435), (20, 995915548), (23, 866013520), (31, 642526160), (40, 497957774), (46, 433006760), (62, 321263080), (80, 248978887), (92, 216503380), (115, 173202704), (124, 160631540), (155, 128505232), (184, 108251690), (230, 86601352), (248, 80315770), (310, 64252616), (368, 54125845), (460, 43300676), (496, 40157885), (620, 32126308), (713, 27935920), (920, 21650338), (1240, 16063154), (1426, 13967960), (1840, 10825169), (2480, 8031577), (2852, 6983980), (3565, 5587184), (5704, 3491990), (7130, 2793592), (11408, 1745995), (14260, 1396796), (28520, 698398), (57040, 349199)]