1645421570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1823}}^1$

素因数の和:2027

約数の個数: 64

約数和(自身を含む): 3276370944

約数和(自身を除く): 1630949374

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 131, 262, 265, 530, 655, 689, 1310, 1378, 1703, 1823, 3406, 3445, 3646, 6890, 6943, 8515, 9115, 13886, 17030, 18230, 23699, 34715, 47398, 69430, 90259, 96619, 118495, 180518, 193238, 236990, 238813, 451295, 477626, 483095, 902590, 966190, 1194065, 1256047, 2388130, 2512094, 3104569, 6209138, 6280235, 12560470, 12657089, 15522845, 25314178, 31045690, 63285445, 126570890, 164542157, 329084314, 822710785, 1645421570]

約数ペア:

[(1, 1645421570), (2, 822710785), (5, 329084314), (10, 164542157), (13, 126570890), (26, 63285445), (53, 31045690), (65, 25314178), (106, 15522845), (130, 12657089), (131, 12560470), (262, 6280235), (265, 6209138), (530, 3104569), (655, 2512094), (689, 2388130), (1310, 1256047), (1378, 1194065), (1703, 966190), (1823, 902590), (3406, 483095), (3445, 477626), (3646, 451295), (6890, 238813), (6943, 236990), (8515, 193238), (9115, 180518), (13886, 118495), (17030, 96619), (18230, 90259), (23699, 69430), (34715, 47398)]