20347860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1373}}^1$

素因数の和:1417

約数の個数: 96

約数和(自身を含む): 64632960

約数和(自身を除く): 44285100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1373, 1482, 2470, 2746, 2964, 3705, 4119, 4940, 5492, 6865, 7410, 8238, 13730, 14820, 16476, 17849, 20595, 26087, 27460, 35698, 41190, 52174, 53547, 71396, 78261, 82380, 89245, 104348, 107094, 130435, 156522, 178490, 214188, 260870, 267735, 313044, 339131, 356980, 391305, 521740, 535470, 678262, 782610, 1017393, 1070940, 1356524, 1565220, 1695655, 2034786, 3391310, 4069572, 5086965, 6782620, 10173930, 20347860]

約数ペア:

[(1, 20347860), (2, 10173930), (3, 6782620), (4, 5086965), (5, 4069572), (6, 3391310), (10, 2034786), (12, 1695655), (13, 1565220), (15, 1356524), (19, 1070940), (20, 1017393), (26, 782610), (30, 678262), (38, 535470), (39, 521740), (52, 391305), (57, 356980), (60, 339131), (65, 313044), (76, 267735), (78, 260870), (95, 214188), (114, 178490), (130, 156522), (156, 130435), (190, 107094), (195, 104348), (228, 89245), (247, 82380), (260, 78261), (285, 71396), (380, 53547), (390, 52174), (494, 41190), (570, 35698), (741, 27460), (780, 26087), (988, 20595), (1140, 17849), (1235, 16476), (1373, 14820), (1482, 13730), (2470, 8238), (2746, 7410), (2964, 6865), (3705, 5492), (4119, 4940)]