79998100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 218736000

約数和(自身を除く): 138737900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 59, 65, 70, 91, 100, 118, 130, 140, 149, 175, 182, 236, 260, 295, 298, 325, 350, 364, 413, 455, 590, 596, 650, 700, 745, 767, 826, 910, 1043, 1180, 1300, 1475, 1490, 1534, 1652, 1820, 1937, 2065, 2086, 2275, 2950, 2980, 3068, 3725, 3835, 3874, 4130, 4172, 4550, 5215, 5369, 5900, 7450, 7670, 7748, 8260, 8791, 9100, 9685, 10325, 10430, 10738, 13559, 14900, 15340, 17582, 19175, 19370, 20650, 20860, 21476, 26075, 26845, 27118, 35164, 38350, 38740, 41300, 43955, 48425, 52150, 53690, 54236, 61537, 67795, 76700, 87910, 96850, 104300, 107380, 114283, 123074, 134225, 135590, 175820, 193700, 219775, 228566, 246148, 268450, 271180, 307685, 338975, 439550, 457132, 536900, 571415, 615370, 677950, 799981, 879100, 1142830, 1230740, 1355900, 1538425, 1599962, 2285660, 2857075, 3076850, 3199924, 3999905, 5714150, 6153700, 7999810, 11428300, 15999620, 19999525, 39999050, 79998100]

約数ペア:

[(1, 79998100), (2, 39999050), (4, 19999525), (5, 15999620), (7, 11428300), (10, 7999810), (13, 6153700), (14, 5714150), (20, 3999905), (25, 3199924), (26, 3076850), (28, 2857075), (35, 2285660), (50, 1599962), (52, 1538425), (59, 1355900), (65, 1230740), (70, 1142830), (91, 879100), (100, 799981), (118, 677950), (130, 615370), (140, 571415), (149, 536900), (175, 457132), (182, 439550), (236, 338975), (260, 307685), (295, 271180), (298, 268450), (325, 246148), (350, 228566), (364, 219775), (413, 193700), (455, 175820), (590, 135590), (596, 134225), (650, 123074), (700, 114283), (745, 107380), (767, 104300), (826, 96850), (910, 87910), (1043, 76700), (1180, 67795), (1300, 61537), (1475, 54236), (1490, 53690), (1534, 52150), (1652, 48425), (1820, 43955), (1937, 41300), (2065, 38740), (2086, 38350), (2275, 35164), (2950, 27118), (2980, 26845), (3068, 26075), (3725, 21476), (3835, 20860), (3874, 20650), (4130, 19370), (4172, 19175), (4550, 17582), (5215, 15340), (5369, 14900), (5900, 13559), (7450, 10738), (7670, 10430), (7748, 10325), (8260, 9685), (8791, 9100)]