19725047420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1\times {\mathrm{4259}}^1$

素因数の和:4707

約数の個数: 96

約数和(自身を含む): 45689011200

約数和(自身を除く): 25963963780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 379, 470, 611, 758, 940, 1222, 1516, 1895, 2444, 3055, 3790, 4259, 4927, 6110, 7580, 8518, 9854, 12220, 17036, 17813, 19708, 21295, 24635, 35626, 42590, 49270, 55367, 71252, 85180, 89065, 98540, 110734, 178130, 200173, 221468, 231569, 276835, 356260, 400346, 463138, 553670, 800692, 926276, 1000865, 1107340, 1157845, 1614161, 2001730, 2315690, 2602249, 3228322, 4003460, 4631380, 5204498, 6456644, 8070805, 10408996, 13011245, 16141610, 20984093, 26022490, 32283220, 41968186, 52044980, 75865567, 83936372, 104920465, 151731134, 209840930, 303462268, 379327835, 419681860, 758655670, 986252371, 1517311340, 1972504742, 3945009484, 4931261855, 9862523710, 19725047420]

約数ペア:

[(1, 19725047420), (2, 9862523710), (4, 4931261855), (5, 3945009484), (10, 1972504742), (13, 1517311340), (20, 986252371), (26, 758655670), (47, 419681860), (52, 379327835), (65, 303462268), (94, 209840930), (130, 151731134), (188, 104920465), (235, 83936372), (260, 75865567), (379, 52044980), (470, 41968186), (611, 32283220), (758, 26022490), (940, 20984093), (1222, 16141610), (1516, 13011245), (1895, 10408996), (2444, 8070805), (3055, 6456644), (3790, 5204498), (4259, 4631380), (4927, 4003460), (6110, 3228322), (7580, 2602249), (8518, 2315690), (9854, 2001730), (12220, 1614161), (17036, 1157845), (17813, 1107340), (19708, 1000865), (21295, 926276), (24635, 800692), (35626, 553670), (42590, 463138), (49270, 400346), (55367, 356260), (71252, 276835), (85180, 231569), (89065, 221468), (98540, 200173), (110734, 178130)]