19643260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 52157952

約数和(自身を除く): 32514692

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 251, 260, 301, 364, 430, 455, 502, 559, 602, 860, 910, 1004, 1118, 1204, 1255, 1505, 1757, 1820, 2236, 2510, 2795, 3010, 3263, 3514, 3913, 5020, 5590, 6020, 6526, 7028, 7826, 8785, 10793, 11180, 13052, 15652, 16315, 17570, 19565, 21586, 22841, 32630, 35140, 39130, 43172, 45682, 53965, 65260, 75551, 78260, 91364, 107930, 114205, 140309, 151102, 215860, 228410, 280618, 302204, 377755, 456820, 561236, 701545, 755510, 982163, 1403090, 1511020, 1964326, 2806180, 3928652, 4910815, 9821630, 19643260]

約数ペア:

[(1, 19643260), (2, 9821630), (4, 4910815), (5, 3928652), (7, 2806180), (10, 1964326), (13, 1511020), (14, 1403090), (20, 982163), (26, 755510), (28, 701545), (35, 561236), (43, 456820), (52, 377755), (65, 302204), (70, 280618), (86, 228410), (91, 215860), (130, 151102), (140, 140309), (172, 114205), (182, 107930), (215, 91364), (251, 78260), (260, 75551), (301, 65260), (364, 53965), (430, 45682), (455, 43172), (502, 39130), (559, 35140), (602, 32630), (860, 22841), (910, 21586), (1004, 19565), (1118, 17570), (1204, 16315), (1255, 15652), (1505, 13052), (1757, 11180), (1820, 10793), (2236, 8785), (2510, 7826), (2795, 7028), (3010, 6526), (3263, 6020), (3514, 5590), (3913, 5020)]