21316000

素因数分解:

$2^5\times 5^3\times {\mathrm{73}}^2$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 53100684

約数和(自身を除く): 31784684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 73, 80, 100, 125, 146, 160, 200, 250, 292, 365, 400, 500, 584, 730, 800, 1000, 1168, 1460, 1825, 2000, 2336, 2920, 3650, 4000, 5329, 5840, 7300, 9125, 10658, 11680, 14600, 18250, 21316, 26645, 29200, 36500, 42632, 53290, 58400, 73000, 85264, 106580, 133225, 146000, 170528, 213160, 266450, 292000, 426320, 532900, 666125, 852640, 1065800, 1332250, 2131600, 2664500, 4263200, 5329000, 10658000, 21316000]

約数ペア:

[(1, 21316000), (2, 10658000), (4, 5329000), (5, 4263200), (8, 2664500), (10, 2131600), (16, 1332250), (20, 1065800), (25, 852640), (32, 666125), (40, 532900), (50, 426320), (73, 292000), (80, 266450), (100, 213160), (125, 170528), (146, 146000), (160, 133225), (200, 106580), (250, 85264), (292, 73000), (365, 58400), (400, 53290), (500, 42632), (584, 36500), (730, 29200), (800, 26645), (1000, 21316), (1168, 18250), (1460, 14600), (1825, 11680), (2000, 10658), (2336, 9125), (2920, 7300), (3650, 5840), (4000, 5329)]