78842920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 202890240

約数和(自身を除く): 124047320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 67, 73, 104, 124, 130, 134, 146, 155, 248, 260, 268, 292, 310, 335, 365, 403, 520, 536, 584, 620, 670, 730, 806, 871, 949, 1240, 1340, 1460, 1612, 1742, 1898, 2015, 2077, 2263, 2680, 2920, 3224, 3484, 3796, 4030, 4154, 4355, 4526, 4745, 4891, 6968, 7592, 8060, 8308, 8710, 9052, 9490, 9782, 10385, 11315, 16120, 16616, 17420, 18104, 18980, 19564, 20770, 22630, 24455, 27001, 29419, 34840, 37960, 39128, 41540, 45260, 48910, 54002, 58838, 63583, 83080, 90520, 97820, 108004, 117676, 127166, 135005, 147095, 151621, 195640, 216008, 235352, 254332, 270010, 294190, 303242, 317915, 508664, 540020, 588380, 606484, 635830, 758105, 1080040, 1176760, 1212968, 1271660, 1516210, 1971073, 2543320, 3032420, 3942146, 6064840, 7884292, 9855365, 15768584, 19710730, 39421460, 78842920]

約数ペア:

[(1, 78842920), (2, 39421460), (4, 19710730), (5, 15768584), (8, 9855365), (10, 7884292), (13, 6064840), (20, 3942146), (26, 3032420), (31, 2543320), (40, 1971073), (52, 1516210), (62, 1271660), (65, 1212968), (67, 1176760), (73, 1080040), (104, 758105), (124, 635830), (130, 606484), (134, 588380), (146, 540020), (155, 508664), (248, 317915), (260, 303242), (268, 294190), (292, 270010), (310, 254332), (335, 235352), (365, 216008), (403, 195640), (520, 151621), (536, 147095), (584, 135005), (620, 127166), (670, 117676), (730, 108004), (806, 97820), (871, 90520), (949, 83080), (1240, 63583), (1340, 58838), (1460, 54002), (1612, 48910), (1742, 45260), (1898, 41540), (2015, 39128), (2077, 37960), (2263, 34840), (2680, 29419), (2920, 27001), (3224, 24455), (3484, 22630), (3796, 20770), (4030, 19564), (4154, 18980), (4355, 18104), (4526, 17420), (4745, 16616), (4891, 16120), (6968, 11315), (7592, 10385), (8060, 9782), (8308, 9490), (8710, 9052)]