21702560

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 60328800

約数和(自身を除く): 38626240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 59, 76, 80, 88, 95, 110, 118, 121, 152, 160, 176, 190, 209, 220, 236, 242, 295, 304, 352, 380, 418, 440, 472, 484, 590, 605, 608, 649, 760, 836, 880, 944, 968, 1045, 1121, 1180, 1210, 1298, 1520, 1672, 1760, 1888, 1936, 2090, 2242, 2299, 2360, 2420, 2596, 3040, 3245, 3344, 3872, 4180, 4484, 4598, 4720, 4840, 5192, 5605, 6490, 6688, 7139, 8360, 8968, 9196, 9440, 9680, 10384, 11210, 11495, 12331, 12980, 14278, 16720, 17936, 18392, 19360, 20768, 22420, 22990, 24662, 25960, 28556, 33440, 35695, 35872, 36784, 44840, 45980, 49324, 51920, 57112, 61655, 71390, 73568, 89680, 91960, 98648, 103840, 114224, 123310, 135641, 142780, 179360, 183920, 197296, 228448, 246620, 271282, 285560, 367840, 394592, 493240, 542564, 571120, 678205, 986480, 1085128, 1142240, 1356410, 1972960, 2170256, 2712820, 4340512, 5425640, 10851280, 21702560]

約数ペア:

[(1, 21702560), (2, 10851280), (4, 5425640), (5, 4340512), (8, 2712820), (10, 2170256), (11, 1972960), (16, 1356410), (19, 1142240), (20, 1085128), (22, 986480), (32, 678205), (38, 571120), (40, 542564), (44, 493240), (55, 394592), (59, 367840), (76, 285560), (80, 271282), (88, 246620), (95, 228448), (110, 197296), (118, 183920), (121, 179360), (152, 142780), (160, 135641), (176, 123310), (190, 114224), (209, 103840), (220, 98648), (236, 91960), (242, 89680), (295, 73568), (304, 71390), (352, 61655), (380, 57112), (418, 51920), (440, 49324), (472, 45980), (484, 44840), (590, 36784), (605, 35872), (608, 35695), (649, 33440), (760, 28556), (836, 25960), (880, 24662), (944, 22990), (968, 22420), (1045, 20768), (1121, 19360), (1180, 18392), (1210, 17936), (1298, 16720), (1520, 14278), (1672, 12980), (1760, 12331), (1888, 11495), (1936, 11210), (2090, 10384), (2242, 9680), (2299, 9440), (2360, 9196), (2420, 8968), (2596, 8360), (3040, 7139), (3245, 6688), (3344, 6490), (3872, 5605), (4180, 5192), (4484, 4840), (4598, 4720)]