280400360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4549}}^1$

素因数の和:4650

約数の個数: 64

約数和(自身を含む): 668304000

約数和(自身を除く): 387903640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 536, 670, 920, 1340, 1541, 2680, 3082, 4549, 6164, 7705, 9098, 12328, 15410, 18196, 22745, 30820, 36392, 45490, 61640, 90980, 104627, 181960, 209254, 304783, 418508, 523135, 609566, 837016, 1046270, 1219132, 1523915, 2092540, 2438264, 3047830, 4185080, 6095660, 7010009, 12191320, 14020018, 28040036, 35050045, 56080072, 70100090, 140200180, 280400360]

約数ペア:

[(1, 280400360), (2, 140200180), (4, 70100090), (5, 56080072), (8, 35050045), (10, 28040036), (20, 14020018), (23, 12191320), (40, 7010009), (46, 6095660), (67, 4185080), (92, 3047830), (115, 2438264), (134, 2092540), (184, 1523915), (230, 1219132), (268, 1046270), (335, 837016), (460, 609566), (536, 523135), (670, 418508), (920, 304783), (1340, 209254), (1541, 181960), (2680, 104627), (3082, 90980), (4549, 61640), (6164, 45490), (7705, 36392), (9098, 30820), (12328, 22745), (15410, 18196)]