80001320

素因数分解:

$2^3\times 5^1\times 7^6\times {\mathrm{17}}^1$

素因数の和:70

約数の個数: 112

約数和(自身を含む): 222356340

約数和(自身を除く): 142355020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 340, 343, 392, 476, 490, 595, 680, 686, 833, 952, 980, 1190, 1372, 1666, 1715, 1960, 2380, 2401, 2744, 3332, 3430, 4165, 4760, 4802, 5831, 6664, 6860, 8330, 9604, 11662, 12005, 13720, 16660, 16807, 19208, 23324, 24010, 29155, 33320, 33614, 40817, 46648, 48020, 58310, 67228, 81634, 84035, 96040, 116620, 117649, 134456, 163268, 168070, 204085, 233240, 235298, 285719, 326536, 336140, 408170, 470596, 571438, 588245, 672280, 816340, 941192, 1142876, 1176490, 1428595, 1632680, 2000033, 2285752, 2352980, 2857190, 4000066, 4705960, 5714380, 8000132, 10000165, 11428760, 16000264, 20000330, 40000660, 80001320]

約数ペア:

[(1, 80001320), (2, 40000660), (4, 20000330), (5, 16000264), (7, 11428760), (8, 10000165), (10, 8000132), (14, 5714380), (17, 4705960), (20, 4000066), (28, 2857190), (34, 2352980), (35, 2285752), (40, 2000033), (49, 1632680), (56, 1428595), (68, 1176490), (70, 1142876), (85, 941192), (98, 816340), (119, 672280), (136, 588245), (140, 571438), (170, 470596), (196, 408170), (238, 336140), (245, 326536), (280, 285719), (340, 235298), (343, 233240), (392, 204085), (476, 168070), (490, 163268), (595, 134456), (680, 117649), (686, 116620), (833, 96040), (952, 84035), (980, 81634), (1190, 67228), (1372, 58310), (1666, 48020), (1715, 46648), (1960, 40817), (2380, 33614), (2401, 33320), (2744, 29155), (3332, 24010), (3430, 23324), (4165, 19208), (4760, 16807), (4802, 16660), (5831, 13720), (6664, 12005), (6860, 11662), (8330, 9604)]