1640783988

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{251}}^1\times {\mathrm{503}}^1$

素因数の和:802

約数の個数: 108

約数和(自身を含む): 4403494368

約数和(自身を除く): 2762710380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 251, 342, 361, 502, 503, 684, 722, 753, 1004, 1006, 1083, 1444, 1506, 1509, 2012, 2166, 2259, 3012, 3018, 3249, 4332, 4518, 4527, 4769, 6036, 6498, 9036, 9054, 9538, 9557, 12996, 14307, 18108, 19076, 19114, 28614, 28671, 38228, 42921, 57228, 57342, 85842, 86013, 90611, 114684, 126253, 171684, 172026, 181222, 181583, 252506, 271833, 344052, 362444, 363166, 378759, 505012, 543666, 544749, 726332, 757518, 815499, 1087332, 1089498, 1136277, 1515036, 1630998, 1634247, 2178996, 2272554, 2398807, 3261996, 3268494, 4545108, 4797614, 6536988, 7196421, 9595228, 14392842, 21589263, 28785684, 43178526, 45577333, 86357052, 91154666, 136731999, 182309332, 273463998, 410195997, 546927996, 820391994, 1640783988]

約数ペア:

[(1, 1640783988), (2, 820391994), (3, 546927996), (4, 410195997), (6, 273463998), (9, 182309332), (12, 136731999), (18, 91154666), (19, 86357052), (36, 45577333), (38, 43178526), (57, 28785684), (76, 21589263), (114, 14392842), (171, 9595228), (228, 7196421), (251, 6536988), (342, 4797614), (361, 4545108), (502, 3268494), (503, 3261996), (684, 2398807), (722, 2272554), (753, 2178996), (1004, 1634247), (1006, 1630998), (1083, 1515036), (1444, 1136277), (1506, 1089498), (1509, 1087332), (2012, 815499), (2166, 757518), (2259, 726332), (3012, 544749), (3018, 543666), (3249, 505012), (4332, 378759), (4518, 363166), (4527, 362444), (4769, 344052), (6036, 271833), (6498, 252506), (9036, 181583), (9054, 181222), (9538, 172026), (9557, 171684), (12996, 126253), (14307, 114684), (18108, 90611), (19076, 86013), (19114, 85842), (28614, 57342), (28671, 57228), (38228, 42921)]