28459340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:871

約数の個数: 96

約数和(自身を含む): 77521920

約数和(自身を除く): 49062580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 665, 823, 910, 988, 1235, 1330, 1646, 1729, 1820, 2470, 2660, 3292, 3458, 4115, 4940, 5761, 6916, 8230, 8645, 10699, 11522, 15637, 16460, 17290, 21398, 23044, 28805, 31274, 34580, 42796, 53495, 57610, 62548, 74893, 78185, 106990, 109459, 115220, 149786, 156370, 203281, 213980, 218918, 299572, 312740, 374465, 406562, 437836, 547295, 748930, 813124, 1016405, 1094590, 1422967, 1497860, 2032810, 2189180, 2845934, 4065620, 5691868, 7114835, 14229670, 28459340]

約数ペア:

[(1, 28459340), (2, 14229670), (4, 7114835), (5, 5691868), (7, 4065620), (10, 2845934), (13, 2189180), (14, 2032810), (19, 1497860), (20, 1422967), (26, 1094590), (28, 1016405), (35, 813124), (38, 748930), (52, 547295), (65, 437836), (70, 406562), (76, 374465), (91, 312740), (95, 299572), (130, 218918), (133, 213980), (140, 203281), (182, 156370), (190, 149786), (247, 115220), (260, 109459), (266, 106990), (364, 78185), (380, 74893), (455, 62548), (494, 57610), (532, 53495), (665, 42796), (823, 34580), (910, 31274), (988, 28805), (1235, 23044), (1330, 21398), (1646, 17290), (1729, 16460), (1820, 15637), (2470, 11522), (2660, 10699), (3292, 8645), (3458, 8230), (4115, 6916), (4940, 5761)]