20125979500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{51539}}^1$

素因数の和:51640

約数の個数: 96

約数和(自身を含む): 48627371520

約数和(自身を除く): 28501392020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 125, 142, 220, 250, 275, 284, 355, 500, 550, 710, 781, 1100, 1375, 1420, 1562, 1775, 2750, 3124, 3550, 3905, 5500, 7100, 7810, 8875, 15620, 17750, 19525, 35500, 39050, 51539, 78100, 97625, 103078, 195250, 206156, 257695, 390500, 515390, 566929, 1030780, 1133858, 1288475, 2267716, 2576950, 2834645, 3659269, 5153900, 5669290, 6442375, 7318538, 11338580, 12884750, 14173225, 14637076, 18296345, 25769500, 28346450, 36592690, 40251959, 56692900, 70866125, 73185380, 80503918, 91481725, 141732250, 161007836, 182963450, 201259795, 283464500, 365926900, 402519590, 457408625, 805039180, 914817250, 1006298975, 1829634500, 2012597950, 4025195900, 5031494875, 10062989750, 20125979500]

約数ペア:

[(1, 20125979500), (2, 10062989750), (4, 5031494875), (5, 4025195900), (10, 2012597950), (11, 1829634500), (20, 1006298975), (22, 914817250), (25, 805039180), (44, 457408625), (50, 402519590), (55, 365926900), (71, 283464500), (100, 201259795), (110, 182963450), (125, 161007836), (142, 141732250), (220, 91481725), (250, 80503918), (275, 73185380), (284, 70866125), (355, 56692900), (500, 40251959), (550, 36592690), (710, 28346450), (781, 25769500), (1100, 18296345), (1375, 14637076), (1420, 14173225), (1562, 12884750), (1775, 11338580), (2750, 7318538), (3124, 6442375), (3550, 5669290), (3905, 5153900), (5500, 3659269), (7100, 2834645), (7810, 2576950), (8875, 2267716), (15620, 1288475), (17750, 1133858), (19525, 1030780), (35500, 566929), (39050, 515390), (51539, 390500), (78100, 257695), (97625, 206156), (103078, 195250)]