28440120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{683}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 85691520

約数和(自身を除く): 57251400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 347, 683, 694, 1041, 1366, 1388, 1735, 2049, 2082, 2732, 2776, 3415, 3470, 4098, 4164, 5205, 5464, 6830, 6940, 8196, 8328, 10245, 10410, 13660, 13880, 16392, 20490, 20820, 27320, 40980, 41640, 81960, 237001, 474002, 711003, 948004, 1185005, 1422006, 1896008, 2370010, 2844012, 3555015, 4740020, 5688024, 7110030, 9480040, 14220060, 28440120]

約数ペア:

[(1, 28440120), (2, 14220060), (3, 9480040), (4, 7110030), (5, 5688024), (6, 4740020), (8, 3555015), (10, 2844012), (12, 2370010), (15, 1896008), (20, 1422006), (24, 1185005), (30, 948004), (40, 711003), (60, 474002), (120, 237001), (347, 81960), (683, 41640), (694, 40980), (1041, 27320), (1366, 20820), (1388, 20490), (1735, 16392), (2049, 13880), (2082, 13660), (2732, 10410), (2776, 10245), (3415, 8328), (3470, 8196), (4098, 6940), (4164, 6830), (5205, 5464)]