19843740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15749}}^1$

素因数の和:15771

約数の個数: 72

約数和(自身を含む): 68796000

約数和(自身を除く): 48952260

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, 15749, 31498, 47247, 62996, 78745, 94494, 110243, 141741, 157490, 188988, 220486, 236235, 283482, 314980, 330729, 440972, 472470, 551215, 566964, 661458, 708705, 944940, 992187, 1102430, 1322916, 1417410, 1653645, 1984374, 2204860, 2834820, 3307290, 3968748, 4960935, 6614580, 9921870, 19843740]

約数ペア:

[(1, 19843740), (2, 9921870), (3, 6614580), (4, 4960935), (5, 3968748), (6, 3307290), (7, 2834820), (9, 2204860), (10, 1984374), (12, 1653645), (14, 1417410), (15, 1322916), (18, 1102430), (20, 992187), (21, 944940), (28, 708705), (30, 661458), (35, 566964), (36, 551215), (42, 472470), (45, 440972), (60, 330729), (63, 314980), (70, 283482), (84, 236235), (90, 220486), (105, 188988), (126, 157490), (140, 141741), (180, 110243), (210, 94494), (252, 78745), (315, 62996), (420, 47247), (630, 31498), (1260, 15749)]