138230320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 340692480

約数和(自身を除く): 202462160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 211, 304, 380, 422, 431, 760, 844, 862, 1055, 1520, 1688, 1724, 2110, 2155, 3376, 3448, 4009, 4220, 4310, 6896, 8018, 8189, 8440, 8620, 16036, 16378, 16880, 17240, 20045, 32072, 32756, 34480, 40090, 40945, 64144, 65512, 80180, 81890, 90941, 131024, 160360, 163780, 181882, 320720, 327560, 363764, 454705, 655120, 727528, 909410, 1455056, 1727879, 1818820, 3455758, 3637640, 6911516, 7275280, 8639395, 13823032, 17278790, 27646064, 34557580, 69115160, 138230320]

約数ペア:

[(1, 138230320), (2, 69115160), (4, 34557580), (5, 27646064), (8, 17278790), (10, 13823032), (16, 8639395), (19, 7275280), (20, 6911516), (38, 3637640), (40, 3455758), (76, 1818820), (80, 1727879), (95, 1455056), (152, 909410), (190, 727528), (211, 655120), (304, 454705), (380, 363764), (422, 327560), (431, 320720), (760, 181882), (844, 163780), (862, 160360), (1055, 131024), (1520, 90941), (1688, 81890), (1724, 80180), (2110, 65512), (2155, 64144), (3376, 40945), (3448, 40090), (4009, 34480), (4220, 32756), (4310, 32072), (6896, 20045), (8018, 17240), (8189, 16880), (8440, 16378), (8620, 16036)]