16829900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 38747520

約数和(自身を除く): 21917620

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 61, 62, 89, 100, 122, 124, 155, 178, 244, 305, 310, 356, 445, 610, 620, 775, 890, 1220, 1525, 1550, 1780, 1891, 2225, 2759, 3050, 3100, 3782, 4450, 5429, 5518, 6100, 7564, 8900, 9455, 10858, 11036, 13795, 18910, 21716, 27145, 27590, 37820, 47275, 54290, 55180, 68975, 94550, 108580, 135725, 137950, 168299, 189100, 271450, 275900, 336598, 542900, 673196, 841495, 1682990, 3365980, 4207475, 8414950, 16829900]

約数ペア:

[(1, 16829900), (2, 8414950), (4, 4207475), (5, 3365980), (10, 1682990), (20, 841495), (25, 673196), (31, 542900), (50, 336598), (61, 275900), (62, 271450), (89, 189100), (100, 168299), (122, 137950), (124, 135725), (155, 108580), (178, 94550), (244, 68975), (305, 55180), (310, 54290), (356, 47275), (445, 37820), (610, 27590), (620, 27145), (775, 21716), (890, 18910), (1220, 13795), (1525, 11036), (1550, 10858), (1780, 9455), (1891, 8900), (2225, 7564), (2759, 6100), (3050, 5518), (3100, 5429), (3782, 4450)]