81704070

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 250967808

約数和(自身を除く): 169263738

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 97, 98, 105, 126, 147, 191, 194, 210, 245, 291, 294, 315, 382, 441, 485, 490, 573, 582, 630, 679, 735, 873, 882, 955, 970, 1146, 1337, 1358, 1455, 1470, 1719, 1746, 1910, 2037, 2205, 2674, 2865, 2910, 3395, 3438, 4011, 4074, 4365, 4410, 4753, 5730, 6111, 6685, 6790, 8022, 8595, 8730, 9359, 9506, 10185, 12033, 12222, 13370, 14259, 17190, 18527, 18718, 20055, 20370, 23765, 24066, 28077, 28518, 30555, 37054, 40110, 42777, 46795, 47530, 55581, 56154, 60165, 61110, 71295, 84231, 85554, 92635, 93590, 111162, 120330, 129689, 140385, 142590, 166743, 168462, 185270, 213885, 259378, 277905, 280770, 333486, 389067, 421155, 427770, 555810, 648445, 778134, 833715, 842310, 907823, 1167201, 1296890, 1667430, 1815646, 1945335, 2334402, 2723469, 3890670, 4539115, 5446938, 5836005, 8170407, 9078230, 11672010, 13617345, 16340814, 27234690, 40852035, 81704070]

約数ペア:

[(1, 81704070), (2, 40852035), (3, 27234690), (5, 16340814), (6, 13617345), (7, 11672010), (9, 9078230), (10, 8170407), (14, 5836005), (15, 5446938), (18, 4539115), (21, 3890670), (30, 2723469), (35, 2334402), (42, 1945335), (45, 1815646), (49, 1667430), (63, 1296890), (70, 1167201), (90, 907823), (97, 842310), (98, 833715), (105, 778134), (126, 648445), (147, 555810), (191, 427770), (194, 421155), (210, 389067), (245, 333486), (291, 280770), (294, 277905), (315, 259378), (382, 213885), (441, 185270), (485, 168462), (490, 166743), (573, 142590), (582, 140385), (630, 129689), (679, 120330), (735, 111162), (873, 93590), (882, 92635), (955, 85554), (970, 84231), (1146, 71295), (1337, 61110), (1358, 60165), (1455, 56154), (1470, 55581), (1719, 47530), (1746, 46795), (1910, 42777), (2037, 40110), (2205, 37054), (2674, 30555), (2865, 28518), (2910, 28077), (3395, 24066), (3438, 23765), (4011, 20370), (4074, 20055), (4365, 18718), (4410, 18527), (4753, 17190), (5730, 14259), (6111, 13370), (6685, 12222), (6790, 12033), (8022, 10185), (8595, 9506), (8730, 9359)]