71875100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 108

約数和(自身を含む): 180566568

約数和(自身を除く): 108691468

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 181, 190, 209, 220, 275, 361, 362, 380, 418, 475, 550, 722, 724, 836, 905, 950, 1045, 1100, 1444, 1805, 1810, 1900, 1991, 2090, 3439, 3610, 3620, 3971, 3982, 4180, 4525, 5225, 6878, 7220, 7942, 7964, 9025, 9050, 9955, 10450, 13756, 15884, 17195, 18050, 18100, 19855, 19910, 20900, 34390, 36100, 37829, 39710, 39820, 49775, 65341, 68780, 75658, 79420, 85975, 99275, 99550, 130682, 151316, 171950, 189145, 198550, 199100, 261364, 326705, 343900, 378290, 397100, 653410, 718751, 756580, 945725, 1306820, 1437502, 1633525, 1891450, 2875004, 3267050, 3593755, 3782900, 6534100, 7187510, 14375020, 17968775, 35937550, 71875100]

約数ペア:

[(1, 71875100), (2, 35937550), (4, 17968775), (5, 14375020), (10, 7187510), (11, 6534100), (19, 3782900), (20, 3593755), (22, 3267050), (25, 2875004), (38, 1891450), (44, 1633525), (50, 1437502), (55, 1306820), (76, 945725), (95, 756580), (100, 718751), (110, 653410), (181, 397100), (190, 378290), (209, 343900), (220, 326705), (275, 261364), (361, 199100), (362, 198550), (380, 189145), (418, 171950), (475, 151316), (550, 130682), (722, 99550), (724, 99275), (836, 85975), (905, 79420), (950, 75658), (1045, 68780), (1100, 65341), (1444, 49775), (1805, 39820), (1810, 39710), (1900, 37829), (1991, 36100), (2090, 34390), (3439, 20900), (3610, 19910), (3620, 19855), (3971, 18100), (3982, 18050), (4180, 17195), (4525, 15884), (5225, 13756), (6878, 10450), (7220, 9955), (7942, 9050), (7964, 9025)]