684807340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{2719}}^1$

素因数の和:2999

約数の個数: 72

約数和(自身を含む): 1680013440

約数和(自身を除く): 995206100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 490, 514, 980, 1028, 1285, 1799, 2570, 2719, 3598, 5140, 5438, 7196, 8995, 10876, 12593, 13595, 17990, 19033, 25186, 27190, 35980, 38066, 50372, 54380, 62965, 76132, 95165, 125930, 133231, 190330, 251860, 266462, 380660, 532924, 666155, 698783, 1332310, 1397566, 2664620, 2795132, 3493915, 4891481, 6987830, 9782962, 13975660, 19565924, 24457405, 34240367, 48914810, 68480734, 97829620, 136961468, 171201835, 342403670, 684807340]

約数ペア:

[(1, 684807340), (2, 342403670), (4, 171201835), (5, 136961468), (7, 97829620), (10, 68480734), (14, 48914810), (20, 34240367), (28, 24457405), (35, 19565924), (49, 13975660), (70, 9782962), (98, 6987830), (140, 4891481), (196, 3493915), (245, 2795132), (257, 2664620), (490, 1397566), (514, 1332310), (980, 698783), (1028, 666155), (1285, 532924), (1799, 380660), (2570, 266462), (2719, 251860), (3598, 190330), (5140, 133231), (5438, 125930), (7196, 95165), (8995, 76132), (10876, 62965), (12593, 54380), (13595, 50372), (17990, 38066), (19033, 35980), (25186, 27190)]