31237220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 79833600

約数和(自身を除く): 48596380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 89, 92, 109, 115, 140, 161, 178, 218, 230, 322, 356, 436, 445, 460, 545, 623, 644, 763, 805, 890, 1090, 1246, 1526, 1610, 1780, 2047, 2180, 2492, 2507, 3052, 3115, 3220, 3815, 4094, 5014, 6230, 7630, 8188, 9701, 10028, 10235, 12460, 12535, 14329, 15260, 17549, 19402, 20470, 25070, 28658, 35098, 38804, 40940, 48505, 50140, 57316, 67907, 70196, 71645, 87745, 97010, 135814, 143290, 175490, 194020, 223123, 271628, 286580, 339535, 350980, 446246, 679070, 892492, 1115615, 1358140, 1561861, 2231230, 3123722, 4462460, 6247444, 7809305, 15618610, 31237220]

約数ペア:

[(1, 31237220), (2, 15618610), (4, 7809305), (5, 6247444), (7, 4462460), (10, 3123722), (14, 2231230), (20, 1561861), (23, 1358140), (28, 1115615), (35, 892492), (46, 679070), (70, 446246), (89, 350980), (92, 339535), (109, 286580), (115, 271628), (140, 223123), (161, 194020), (178, 175490), (218, 143290), (230, 135814), (322, 97010), (356, 87745), (436, 71645), (445, 70196), (460, 67907), (545, 57316), (623, 50140), (644, 48505), (763, 40940), (805, 38804), (890, 35098), (1090, 28658), (1246, 25070), (1526, 20470), (1610, 19402), (1780, 17549), (2047, 15260), (2180, 14329), (2492, 12535), (2507, 12460), (3052, 10235), (3115, 10028), (3220, 9701), (3815, 8188), (4094, 7630), (5014, 6230)]