42780400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:483

約数の個数: 120

約数和(自身を含む): 116780720

約数和(自身を除く): 74000320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 130, 152, 190, 200, 208, 247, 260, 304, 325, 380, 400, 433, 475, 494, 520, 650, 760, 866, 950, 988, 1040, 1235, 1300, 1520, 1732, 1900, 1976, 2165, 2470, 2600, 3464, 3800, 3952, 4330, 4940, 5200, 5629, 6175, 6928, 7600, 8227, 8660, 9880, 10825, 11258, 12350, 16454, 17320, 19760, 21650, 22516, 24700, 28145, 32908, 34640, 41135, 43300, 45032, 49400, 56290, 65816, 82270, 86600, 90064, 98800, 106951, 112580, 131632, 140725, 164540, 173200, 205675, 213902, 225160, 281450, 329080, 411350, 427804, 450320, 534755, 562900, 658160, 822700, 855608, 1069510, 1125800, 1645400, 1711216, 2139020, 2251600, 2673775, 3290800, 4278040, 5347550, 8556080, 10695100, 21390200, 42780400]

約数ペア:

[(1, 42780400), (2, 21390200), (4, 10695100), (5, 8556080), (8, 5347550), (10, 4278040), (13, 3290800), (16, 2673775), (19, 2251600), (20, 2139020), (25, 1711216), (26, 1645400), (38, 1125800), (40, 1069510), (50, 855608), (52, 822700), (65, 658160), (76, 562900), (80, 534755), (95, 450320), (100, 427804), (104, 411350), (130, 329080), (152, 281450), (190, 225160), (200, 213902), (208, 205675), (247, 173200), (260, 164540), (304, 140725), (325, 131632), (380, 112580), (400, 106951), (433, 98800), (475, 90064), (494, 86600), (520, 82270), (650, 65816), (760, 56290), (866, 49400), (950, 45032), (988, 43300), (1040, 41135), (1235, 34640), (1300, 32908), (1520, 28145), (1732, 24700), (1900, 22516), (1976, 21650), (2165, 19760), (2470, 17320), (2600, 16454), (3464, 12350), (3800, 11258), (3952, 10825), (4330, 9880), (4940, 8660), (5200, 8227), (5629, 7600), (6175, 6928)]