20120665040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1873}}^1\times {\mathrm{19183}}^1$

素因数の和:21076

約数の個数: 80

約数和(自身を含む): 53494814208

約数和(自身を除く): 33374149168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1873, 3746, 7492, 9365, 13111, 14984, 18730, 19183, 26222, 29968, 37460, 38366, 52444, 65555, 74920, 76732, 95915, 104888, 131110, 134281, 149840, 153464, 191830, 209776, 262220, 268562, 306928, 383660, 524440, 537124, 671405, 767320, 1048880, 1074248, 1342810, 1534640, 2148496, 2685620, 5371240, 10742480, 35929759, 71859518, 143719036, 179648795, 251508313, 287438072, 359297590, 503016626, 574876144, 718595180, 1006033252, 1257541565, 1437190360, 2012066504, 2515083130, 2874380720, 4024133008, 5030166260, 10060332520, 20120665040]

約数ペア:

[(1, 20120665040), (2, 10060332520), (4, 5030166260), (5, 4024133008), (7, 2874380720), (8, 2515083130), (10, 2012066504), (14, 1437190360), (16, 1257541565), (20, 1006033252), (28, 718595180), (35, 574876144), (40, 503016626), (56, 359297590), (70, 287438072), (80, 251508313), (112, 179648795), (140, 143719036), (280, 71859518), (560, 35929759), (1873, 10742480), (3746, 5371240), (7492, 2685620), (9365, 2148496), (13111, 1534640), (14984, 1342810), (18730, 1074248), (19183, 1048880), (26222, 767320), (29968, 671405), (37460, 537124), (38366, 524440), (52444, 383660), (65555, 306928), (74920, 268562), (76732, 262220), (95915, 209776), (104888, 191830), (131110, 153464), (134281, 149840)]