80498320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4637}}^1$

素因数の和:4688

約数の個数: 80

約数和(自身を含む): 220843008

約数和(自身を除く): 140344688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 4637, 8680, 9274, 17360, 18548, 23185, 32459, 37096, 46370, 64918, 74192, 92740, 129836, 143747, 162295, 185480, 259672, 287494, 324590, 370960, 519344, 574988, 649180, 718735, 1006229, 1149976, 1298360, 1437470, 2012458, 2299952, 2596720, 2874940, 4024916, 5031145, 5749880, 8049832, 10062290, 11499760, 16099664, 20124580, 40249160, 80498320]

約数ペア:

[(1, 80498320), (2, 40249160), (4, 20124580), (5, 16099664), (7, 11499760), (8, 10062290), (10, 8049832), (14, 5749880), (16, 5031145), (20, 4024916), (28, 2874940), (31, 2596720), (35, 2299952), (40, 2012458), (56, 1437470), (62, 1298360), (70, 1149976), (80, 1006229), (112, 718735), (124, 649180), (140, 574988), (155, 519344), (217, 370960), (248, 324590), (280, 287494), (310, 259672), (434, 185480), (496, 162295), (560, 143747), (620, 129836), (868, 92740), (1085, 74192), (1240, 64918), (1736, 46370), (2170, 37096), (2480, 32459), (3472, 23185), (4340, 18548), (4637, 17360), (8680, 9274)]