31918100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 74057760

約数和(自身を除く): 42139660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 107, 157, 190, 214, 314, 380, 428, 475, 535, 628, 785, 950, 1070, 1570, 1900, 2033, 2140, 2675, 2983, 3140, 3925, 4066, 5350, 5966, 7850, 8132, 10165, 10700, 11932, 14915, 15700, 16799, 20330, 29830, 33598, 40660, 50825, 59660, 67196, 74575, 83995, 101650, 149150, 167990, 203300, 298300, 319181, 335980, 419975, 638362, 839950, 1276724, 1595905, 1679900, 3191810, 6383620, 7979525, 15959050, 31918100]

約数ペア:

[(1, 31918100), (2, 15959050), (4, 7979525), (5, 6383620), (10, 3191810), (19, 1679900), (20, 1595905), (25, 1276724), (38, 839950), (50, 638362), (76, 419975), (95, 335980), (100, 319181), (107, 298300), (157, 203300), (190, 167990), (214, 149150), (314, 101650), (380, 83995), (428, 74575), (475, 67196), (535, 59660), (628, 50825), (785, 40660), (950, 33598), (1070, 29830), (1570, 20330), (1900, 16799), (2033, 15700), (2140, 14915), (2675, 11932), (2983, 10700), (3140, 10165), (3925, 8132), (4066, 7850), (5350, 5966)]