20438600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1123}}^1$

素因数の和:1159

約数の個数: 96

約数和(自身を含む): 58537920

約数和(自身を除く): 38099320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 130, 140, 175, 182, 200, 260, 280, 325, 350, 364, 455, 520, 650, 700, 728, 910, 1123, 1300, 1400, 1820, 2246, 2275, 2600, 3640, 4492, 4550, 5615, 7861, 8984, 9100, 11230, 14599, 15722, 18200, 22460, 28075, 29198, 31444, 39305, 44920, 56150, 58396, 62888, 72995, 78610, 102193, 112300, 116792, 145990, 157220, 196525, 204386, 224600, 291980, 314440, 364975, 393050, 408772, 510965, 583960, 729950, 786100, 817544, 1021930, 1459900, 1572200, 2043860, 2554825, 2919800, 4087720, 5109650, 10219300, 20438600]

約数ペア:

[(1, 20438600), (2, 10219300), (4, 5109650), (5, 4087720), (7, 2919800), (8, 2554825), (10, 2043860), (13, 1572200), (14, 1459900), (20, 1021930), (25, 817544), (26, 786100), (28, 729950), (35, 583960), (40, 510965), (50, 408772), (52, 393050), (56, 364975), (65, 314440), (70, 291980), (91, 224600), (100, 204386), (104, 196525), (130, 157220), (140, 145990), (175, 116792), (182, 112300), (200, 102193), (260, 78610), (280, 72995), (325, 62888), (350, 58396), (364, 56150), (455, 44920), (520, 39305), (650, 31444), (700, 29198), (728, 28075), (910, 22460), (1123, 18200), (1300, 15722), (1400, 14599), (1820, 11230), (2246, 9100), (2275, 8984), (2600, 7861), (3640, 5615), (4492, 4550)]