80381320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2131}}^1$

素因数の和:2206

約数の個数: 64

約数和(自身を含む): 193415040

約数和(自身を除く): 113033720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 820, 920, 943, 1640, 1886, 2131, 3772, 4262, 4715, 7544, 8524, 9430, 10655, 17048, 18860, 21310, 37720, 42620, 49013, 85240, 87371, 98026, 174742, 196052, 245065, 349484, 392104, 436855, 490130, 698968, 873710, 980260, 1747420, 1960520, 2009533, 3494840, 4019066, 8038132, 10047665, 16076264, 20095330, 40190660, 80381320]

約数ペア:

[(1, 80381320), (2, 40190660), (4, 20095330), (5, 16076264), (8, 10047665), (10, 8038132), (20, 4019066), (23, 3494840), (40, 2009533), (41, 1960520), (46, 1747420), (82, 980260), (92, 873710), (115, 698968), (164, 490130), (184, 436855), (205, 392104), (230, 349484), (328, 245065), (410, 196052), (460, 174742), (820, 98026), (920, 87371), (943, 85240), (1640, 49013), (1886, 42620), (2131, 37720), (3772, 21310), (4262, 18860), (4715, 17048), (7544, 10655), (8524, 9430)]