206968840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{643}}^1$

素因数の和:1286

約数の個数: 64

約数和(自身を含む): 503092800

約数和(自身を除く): 296123960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 619, 643, 1238, 1286, 2476, 2572, 3095, 3215, 4952, 5144, 6190, 6430, 8047, 8359, 12380, 12860, 16094, 16718, 24760, 25720, 32188, 33436, 40235, 41795, 64376, 66872, 80470, 83590, 160940, 167180, 321880, 334360, 398017, 796034, 1592068, 1990085, 3184136, 3980170, 5174221, 7960340, 10348442, 15920680, 20696884, 25871105, 41393768, 51742210, 103484420, 206968840]

約数ペア:

[(1, 206968840), (2, 103484420), (4, 51742210), (5, 41393768), (8, 25871105), (10, 20696884), (13, 15920680), (20, 10348442), (26, 7960340), (40, 5174221), (52, 3980170), (65, 3184136), (104, 1990085), (130, 1592068), (260, 796034), (520, 398017), (619, 334360), (643, 321880), (1238, 167180), (1286, 160940), (2476, 83590), (2572, 80470), (3095, 66872), (3215, 64376), (4952, 41795), (5144, 40235), (6190, 33436), (6430, 32188), (8047, 25720), (8359, 24760), (12380, 16718), (12860, 16094)]