20128745620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{7901}}^1$

素因数の和:8113

約数の個数: 96

約数和(自身を含む): 45879644160

約数和(自身を除く): 25750898540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 127, 170, 236, 254, 295, 340, 508, 590, 635, 1003, 1180, 1270, 2006, 2159, 2540, 4012, 4318, 5015, 7493, 7901, 8636, 10030, 10795, 14986, 15802, 20060, 21590, 29972, 31604, 37465, 39505, 43180, 74930, 79010, 127381, 134317, 149860, 158020, 254762, 268634, 466159, 509524, 537268, 636905, 671585, 932318, 1003427, 1273810, 1343170, 1864636, 2006854, 2330795, 2547620, 2686340, 4013708, 4661590, 5017135, 7924703, 9323180, 10034270, 15849406, 17058259, 20068540, 31698812, 34116518, 39623515, 59202193, 68233036, 79247030, 85291295, 118404386, 158494060, 170582590, 236808772, 296010965, 341165180, 592021930, 1006437281, 1184043860, 2012874562, 4025749124, 5032186405, 10064372810, 20128745620]

約数ペア:

[(1, 20128745620), (2, 10064372810), (4, 5032186405), (5, 4025749124), (10, 2012874562), (17, 1184043860), (20, 1006437281), (34, 592021930), (59, 341165180), (68, 296010965), (85, 236808772), (118, 170582590), (127, 158494060), (170, 118404386), (236, 85291295), (254, 79247030), (295, 68233036), (340, 59202193), (508, 39623515), (590, 34116518), (635, 31698812), (1003, 20068540), (1180, 17058259), (1270, 15849406), (2006, 10034270), (2159, 9323180), (2540, 7924703), (4012, 5017135), (4318, 4661590), (5015, 4013708), (7493, 2686340), (7901, 2547620), (8636, 2330795), (10030, 2006854), (10795, 1864636), (14986, 1343170), (15802, 1273810), (20060, 1003427), (21590, 932318), (29972, 671585), (31604, 636905), (37465, 537268), (39505, 509524), (43180, 466159), (74930, 268634), (79010, 254762), (127381, 158020), (134317, 149860)]