28741860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22811}}^1$

素因数の和:22833

約数の個数: 72

約数和(自身を含む): 99642816

約数和(自身を除く): 70900956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22811, 45622, 68433, 91244, 114055, 136866, 159677, 205299, 228110, 273732, 319354, 342165, 410598, 456220, 479031, 638708, 684330, 798385, 821196, 958062, 1026495, 1368660, 1437093, 1596770, 1916124, 2052990, 2395155, 2874186, 3193540, 4105980, 4790310, 5748372, 7185465, 9580620, 14370930, 28741860]

約数ペア:

[(1, 28741860), (2, 14370930), (3, 9580620), (4, 7185465), (5, 5748372), (6, 4790310), (7, 4105980), (9, 3193540), (10, 2874186), (12, 2395155), (14, 2052990), (15, 1916124), (18, 1596770), (20, 1437093), (21, 1368660), (28, 1026495), (30, 958062), (35, 821196), (36, 798385), (42, 684330), (45, 638708), (60, 479031), (63, 456220), (70, 410598), (84, 342165), (90, 319354), (105, 273732), (126, 228110), (140, 205299), (180, 159677), (210, 136866), (252, 114055), (315, 91244), (420, 68433), (630, 45622), (1260, 22811)]