281101428

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 144

約数和(自身を含む): 802314240

約数和(自身を除く): 521212812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 31, 36, 38, 54, 57, 62, 76, 81, 93, 108, 114, 124, 162, 171, 186, 228, 243, 279, 324, 342, 372, 486, 491, 513, 558, 589, 684, 837, 972, 982, 1026, 1116, 1178, 1473, 1539, 1674, 1767, 1964, 2052, 2356, 2511, 2946, 3078, 3348, 3534, 4419, 4617, 5022, 5301, 5892, 6156, 7068, 7533, 8838, 9234, 9329, 10044, 10602, 13257, 15066, 15221, 15903, 17676, 18468, 18658, 21204, 26514, 27987, 30132, 30442, 31806, 37316, 39771, 45663, 47709, 53028, 55974, 60884, 63612, 79542, 83961, 91326, 95418, 111948, 119313, 136989, 143127, 159084, 167922, 182652, 190836, 238626, 251883, 273978, 286254, 289199, 335844, 410967, 477252, 503766, 547956, 572508, 578398, 755649, 821934, 867597, 1007532, 1156796, 1232901, 1511298, 1643868, 1735194, 2266947, 2465802, 2602791, 3022596, 3470388, 3698703, 4533894, 4931604, 5205582, 7397406, 7808373, 9067788, 10411164, 14794812, 15616746, 23425119, 31233492, 46850238, 70275357, 93700476, 140550714, 281101428]

約数ペア:

[(1, 281101428), (2, 140550714), (3, 93700476), (4, 70275357), (6, 46850238), (9, 31233492), (12, 23425119), (18, 15616746), (19, 14794812), (27, 10411164), (31, 9067788), (36, 7808373), (38, 7397406), (54, 5205582), (57, 4931604), (62, 4533894), (76, 3698703), (81, 3470388), (93, 3022596), (108, 2602791), (114, 2465802), (124, 2266947), (162, 1735194), (171, 1643868), (186, 1511298), (228, 1232901), (243, 1156796), (279, 1007532), (324, 867597), (342, 821934), (372, 755649), (486, 578398), (491, 572508), (513, 547956), (558, 503766), (589, 477252), (684, 410967), (837, 335844), (972, 289199), (982, 286254), (1026, 273978), (1116, 251883), (1178, 238626), (1473, 190836), (1539, 182652), (1674, 167922), (1767, 159084), (1964, 143127), (2052, 136989), (2356, 119313), (2511, 111948), (2946, 95418), (3078, 91326), (3348, 83961), (3534, 79542), (4419, 63612), (4617, 60884), (5022, 55974), (5301, 53028), (5892, 47709), (6156, 45663), (7068, 39771), (7533, 37316), (8838, 31806), (9234, 30442), (9329, 30132), (10044, 27987), (10602, 26514), (13257, 21204), (15066, 18658), (15221, 18468), (15903, 17676)]