28179970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 34961150

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 173, 179, 182, 346, 358, 455, 865, 895, 910, 1211, 1253, 1730, 1790, 2249, 2327, 2422, 2506, 4498, 4654, 6055, 6265, 11245, 11635, 12110, 12530, 15743, 16289, 22490, 23270, 30967, 31486, 32578, 61934, 78715, 81445, 154835, 157430, 162890, 216769, 309670, 402571, 433538, 805142, 1083845, 2012855, 2167690, 2817997, 4025710, 5635994, 14089985, 28179970]

約数ペア:

[(1, 28179970), (2, 14089985), (5, 5635994), (7, 4025710), (10, 2817997), (13, 2167690), (14, 2012855), (26, 1083845), (35, 805142), (65, 433538), (70, 402571), (91, 309670), (130, 216769), (173, 162890), (179, 157430), (182, 154835), (346, 81445), (358, 78715), (455, 61934), (865, 32578), (895, 31486), (910, 30967), (1211, 23270), (1253, 22490), (1730, 16289), (1790, 15743), (2249, 12530), (2327, 12110), (2422, 11635), (2506, 11245), (4498, 6265), (4654, 6055)]