42889100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 96868800

約数和(自身を除く): 53979700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 79, 89, 100, 122, 158, 178, 244, 305, 316, 356, 395, 445, 610, 790, 890, 1220, 1525, 1580, 1780, 1975, 2225, 3050, 3950, 4450, 4819, 5429, 6100, 7031, 7900, 8900, 9638, 10858, 14062, 19276, 21716, 24095, 27145, 28124, 35155, 48190, 54290, 70310, 96380, 108580, 120475, 135725, 140620, 175775, 240950, 271450, 351550, 428891, 481900, 542900, 703100, 857782, 1715564, 2144455, 4288910, 8577820, 10722275, 21444550, 42889100]

約数ペア:

[(1, 42889100), (2, 21444550), (4, 10722275), (5, 8577820), (10, 4288910), (20, 2144455), (25, 1715564), (50, 857782), (61, 703100), (79, 542900), (89, 481900), (100, 428891), (122, 351550), (158, 271450), (178, 240950), (244, 175775), (305, 140620), (316, 135725), (356, 120475), (395, 108580), (445, 96380), (610, 70310), (790, 54290), (890, 48190), (1220, 35155), (1525, 28124), (1580, 27145), (1780, 24095), (1975, 21716), (2225, 19276), (3050, 14062), (3950, 10858), (4450, 9638), (4819, 8900), (5429, 7900), (6100, 7031)]