648008340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{220411}}^1$

素因数の和:220437

約数の個数: 72

約数和(自身を含む): 2110665312

約数和(自身を除く): 1462656972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 220411, 440822, 661233, 881644, 1102055, 1322466, 1542877, 2204110, 2644932, 3085754, 3306165, 4408220, 4628631, 6171508, 6612330, 7714385, 9257262, 10800139, 13224660, 15428770, 18514524, 21600278, 23143155, 30857540, 32400417, 43200556, 46286310, 54000695, 64800834, 92572620, 108001390, 129601668, 162002085, 216002780, 324004170, 648008340]

約数ペア:

[(1, 648008340), (2, 324004170), (3, 216002780), (4, 162002085), (5, 129601668), (6, 108001390), (7, 92572620), (10, 64800834), (12, 54000695), (14, 46286310), (15, 43200556), (20, 32400417), (21, 30857540), (28, 23143155), (30, 21600278), (35, 18514524), (42, 15428770), (49, 13224660), (60, 10800139), (70, 9257262), (84, 7714385), (98, 6612330), (105, 6171508), (140, 4628631), (147, 4408220), (196, 3306165), (210, 3085754), (245, 2644932), (294, 2204110), (420, 1542877), (490, 1322466), (588, 1102055), (735, 881644), (980, 661233), (1470, 440822), (2940, 220411)]