19877572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 45158400

約数和(自身を除く): 25280828

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 31, 38, 44, 52, 59, 62, 76, 118, 124, 143, 209, 236, 247, 286, 341, 403, 418, 494, 572, 589, 649, 682, 767, 806, 836, 988, 1121, 1178, 1298, 1364, 1534, 1612, 1829, 2242, 2356, 2596, 2717, 3068, 3658, 4433, 4484, 5434, 6479, 7316, 7657, 8437, 8866, 10868, 12331, 12958, 14573, 15314, 16874, 17732, 20119, 23777, 24662, 25916, 29146, 30628, 33748, 34751, 40238, 47554, 49324, 58292, 69502, 80476, 84227, 95108, 139004, 160303, 168454, 261547, 320606, 336908, 382261, 451763, 523094, 641212, 764522, 903526, 1046188, 1529044, 1807052, 4969393, 9938786, 19877572]

約数ペア:

[(1, 19877572), (2, 9938786), (4, 4969393), (11, 1807052), (13, 1529044), (19, 1046188), (22, 903526), (26, 764522), (31, 641212), (38, 523094), (44, 451763), (52, 382261), (59, 336908), (62, 320606), (76, 261547), (118, 168454), (124, 160303), (143, 139004), (209, 95108), (236, 84227), (247, 80476), (286, 69502), (341, 58292), (403, 49324), (418, 47554), (494, 40238), (572, 34751), (589, 33748), (649, 30628), (682, 29146), (767, 25916), (806, 24662), (836, 23777), (988, 20119), (1121, 17732), (1178, 16874), (1298, 15314), (1364, 14573), (1534, 12958), (1612, 12331), (1829, 10868), (2242, 8866), (2356, 8437), (2596, 7657), (2717, 7316), (3068, 6479), (3658, 5434), (4433, 4484)]