19002100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 45497088

約数和(自身を除く): 26494988

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 47, 50, 52, 65, 94, 100, 130, 188, 235, 260, 311, 325, 470, 611, 622, 650, 940, 1175, 1222, 1244, 1300, 1555, 2350, 2444, 3055, 3110, 4043, 4700, 6110, 6220, 7775, 8086, 12220, 14617, 15275, 15550, 16172, 20215, 29234, 30550, 31100, 40430, 58468, 61100, 73085, 80860, 101075, 146170, 190021, 202150, 292340, 365425, 380042, 404300, 730850, 760084, 950105, 1461700, 1900210, 3800420, 4750525, 9501050, 19002100]

約数ペア:

[(1, 19002100), (2, 9501050), (4, 4750525), (5, 3800420), (10, 1900210), (13, 1461700), (20, 950105), (25, 760084), (26, 730850), (47, 404300), (50, 380042), (52, 365425), (65, 292340), (94, 202150), (100, 190021), (130, 146170), (188, 101075), (235, 80860), (260, 73085), (311, 61100), (325, 58468), (470, 40430), (611, 31100), (622, 30550), (650, 29234), (940, 20215), (1175, 16172), (1222, 15550), (1244, 15275), (1300, 14617), (1555, 12220), (2350, 8086), (2444, 7775), (3055, 6220), (3110, 6110), (4043, 4700)]