81988760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:793

約数の個数: 96

約数和(自身を含む): 218538000

約数和(自身を除く): 136549240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 59, 70, 98, 118, 140, 196, 236, 245, 280, 295, 392, 413, 472, 490, 590, 709, 826, 980, 1180, 1418, 1652, 1960, 2065, 2360, 2836, 2891, 3304, 3545, 4130, 4963, 5672, 5782, 7090, 8260, 9926, 11564, 14180, 14455, 16520, 19852, 23128, 24815, 28360, 28910, 34741, 39704, 41831, 49630, 57820, 69482, 83662, 99260, 115640, 138964, 167324, 173705, 198520, 209155, 277928, 292817, 334648, 347410, 418310, 585634, 694820, 836620, 1171268, 1389640, 1464085, 1673240, 2049719, 2342536, 2928170, 4099438, 5856340, 8198876, 10248595, 11712680, 16397752, 20497190, 40994380, 81988760]

約数ペア:

[(1, 81988760), (2, 40994380), (4, 20497190), (5, 16397752), (7, 11712680), (8, 10248595), (10, 8198876), (14, 5856340), (20, 4099438), (28, 2928170), (35, 2342536), (40, 2049719), (49, 1673240), (56, 1464085), (59, 1389640), (70, 1171268), (98, 836620), (118, 694820), (140, 585634), (196, 418310), (236, 347410), (245, 334648), (280, 292817), (295, 277928), (392, 209155), (413, 198520), (472, 173705), (490, 167324), (590, 138964), (709, 115640), (826, 99260), (980, 83662), (1180, 69482), (1418, 57820), (1652, 49630), (1960, 41831), (2065, 39704), (2360, 34741), (2836, 28910), (2891, 28360), (3304, 24815), (3545, 23128), (4130, 19852), (4963, 16520), (5672, 14455), (5782, 14180), (7090, 11564), (8260, 9926)]