649040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:100

約数の個数: 80

約数和(自身を含む): 1845120

約数和(自身を除く): 1196080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 61, 70, 76, 80, 95, 112, 122, 133, 140, 152, 190, 244, 266, 280, 304, 305, 380, 427, 488, 532, 560, 610, 665, 760, 854, 976, 1064, 1159, 1220, 1330, 1520, 1708, 2128, 2135, 2318, 2440, 2660, 3416, 4270, 4636, 4880, 5320, 5795, 6832, 8113, 8540, 9272, 10640, 11590, 16226, 17080, 18544, 23180, 32452, 34160, 40565, 46360, 64904, 81130, 92720, 129808, 162260, 324520, 649040]

約数ペア:

[(1, 649040), (2, 324520), (4, 162260), (5, 129808), (7, 92720), (8, 81130), (10, 64904), (14, 46360), (16, 40565), (19, 34160), (20, 32452), (28, 23180), (35, 18544), (38, 17080), (40, 16226), (56, 11590), (61, 10640), (70, 9272), (76, 8540), (80, 8113), (95, 6832), (112, 5795), (122, 5320), (133, 4880), (140, 4636), (152, 4270), (190, 3416), (244, 2660), (266, 2440), (280, 2318), (304, 2135), (305, 2128), (380, 1708), (427, 1520), (488, 1330), (532, 1220), (560, 1159), (610, 1064), (665, 976), (760, 854)]