2019942440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{19121}}^1$

素因数の和:19290

約数の個数: 64

約数和(自身を含む): 4818744000

約数和(自身を除く): 2798801560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 278, 380, 556, 695, 760, 1112, 1390, 2641, 2780, 5282, 5560, 10564, 13205, 19121, 21128, 26410, 38242, 52820, 76484, 95605, 105640, 152968, 191210, 363299, 382420, 726598, 764840, 1453196, 1816495, 2657819, 2906392, 3632990, 5315638, 7265980, 10631276, 13289095, 14531960, 21262552, 26578190, 50498561, 53156380, 100997122, 106312760, 201994244, 252492805, 403988488, 504985610, 1009971220, 2019942440]

約数ペア:

[(1, 2019942440), (2, 1009971220), (4, 504985610), (5, 403988488), (8, 252492805), (10, 201994244), (19, 106312760), (20, 100997122), (38, 53156380), (40, 50498561), (76, 26578190), (95, 21262552), (139, 14531960), (152, 13289095), (190, 10631276), (278, 7265980), (380, 5315638), (556, 3632990), (695, 2906392), (760, 2657819), (1112, 1816495), (1390, 1453196), (2641, 764840), (2780, 726598), (5282, 382420), (5560, 363299), (10564, 191210), (13205, 152968), (19121, 105640), (21128, 95605), (26410, 76484), (38242, 52820)]