291355900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^4\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 90

約数和(自身を含む): 698957000

約数和(自身を除く): 407601100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 199, 220, 242, 275, 398, 484, 550, 605, 796, 995, 1100, 1210, 1331, 1990, 2189, 2420, 2662, 3025, 3980, 4378, 4975, 5324, 6050, 6655, 8756, 9950, 10945, 12100, 13310, 14641, 19900, 21890, 24079, 26620, 29282, 33275, 43780, 48158, 54725, 58564, 66550, 73205, 96316, 109450, 120395, 133100, 146410, 218900, 240790, 264869, 292820, 366025, 481580, 529738, 601975, 732050, 1059476, 1203950, 1324345, 1464100, 2407900, 2648690, 2913559, 5297380, 5827118, 6621725, 11654236, 13243450, 14567795, 26486900, 29135590, 58271180, 72838975, 145677950, 291355900]

約数ペア:

[(1, 291355900), (2, 145677950), (4, 72838975), (5, 58271180), (10, 29135590), (11, 26486900), (20, 14567795), (22, 13243450), (25, 11654236), (44, 6621725), (50, 5827118), (55, 5297380), (100, 2913559), (110, 2648690), (121, 2407900), (199, 1464100), (220, 1324345), (242, 1203950), (275, 1059476), (398, 732050), (484, 601975), (550, 529738), (605, 481580), (796, 366025), (995, 292820), (1100, 264869), (1210, 240790), (1331, 218900), (1990, 146410), (2189, 133100), (2420, 120395), (2662, 109450), (3025, 96316), (3980, 73205), (4378, 66550), (4975, 58564), (5324, 54725), (6050, 48158), (6655, 43780), (8756, 33275), (9950, 29282), (10945, 26620), (12100, 24079), (13310, 21890), (14641, 19900)]