28781142

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 65995776

約数和(自身を除く): 37214634

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 61, 69, 78, 122, 138, 183, 263, 299, 366, 526, 598, 789, 793, 897, 1403, 1578, 1586, 1794, 2379, 2806, 3419, 4209, 4758, 6049, 6838, 8418, 10257, 12098, 16043, 18147, 18239, 20514, 32086, 36294, 36478, 48129, 54717, 78637, 96258, 109434, 157274, 208559, 235911, 368989, 417118, 471822, 625677, 737978, 1106967, 1251354, 2213934, 4796857, 9593714, 14390571, 28781142]

約数ペア:

[(1, 28781142), (2, 14390571), (3, 9593714), (6, 4796857), (13, 2213934), (23, 1251354), (26, 1106967), (39, 737978), (46, 625677), (61, 471822), (69, 417118), (78, 368989), (122, 235911), (138, 208559), (183, 157274), (263, 109434), (299, 96258), (366, 78637), (526, 54717), (598, 48129), (789, 36478), (793, 36294), (897, 32086), (1403, 20514), (1578, 18239), (1586, 18147), (1794, 16043), (2379, 12098), (2806, 10257), (3419, 8418), (4209, 6838), (4758, 6049)]