1998945350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1$

素因数の和:187

約数の個数: 144

約数和(自身を含む): 4239572400

約数和(自身を除く): 2240627050

約数列:

[1, 2, 5, 10, 19, 25, 29, 37, 38, 50, 53, 58, 74, 95, 106, 145, 185, 190, 265, 290, 370, 475, 530, 551, 703, 725, 925, 950, 1007, 1073, 1102, 1325, 1369, 1406, 1450, 1537, 1850, 1961, 2014, 2146, 2650, 2738, 2755, 3074, 3515, 3922, 5035, 5365, 5510, 6845, 7030, 7685, 9805, 10070, 10730, 13690, 13775, 15370, 17575, 19610, 20387, 25175, 26011, 26825, 27550, 29203, 34225, 35150, 37259, 38425, 39701, 40774, 49025, 50350, 52022, 53650, 56869, 58406, 68450, 72557, 74518, 76850, 79402, 98050, 101935, 113738, 130055, 145114, 146015, 186295, 198505, 203870, 260110, 284345, 292030, 362785, 372590, 397010, 509675, 568690, 650275, 725570, 730075, 754319, 931475, 992525, 1019350, 1080511, 1300550, 1378583, 1421725, 1460150, 1508638, 1813925, 1862950, 1985050, 2104153, 2161022, 2757166, 2843450, 3627850, 3771595, 4208306, 5402555, 6892915, 7543190, 10520765, 10805110, 13785830, 18857975, 21041530, 27012775, 34464575, 37715950, 39978907, 52603825, 54025550, 68929150, 79957814, 105207650, 199894535, 399789070, 999472675, 1998945350]

約数ペア:

[(1, 1998945350), (2, 999472675), (5, 399789070), (10, 199894535), (19, 105207650), (25, 79957814), (29, 68929150), (37, 54025550), (38, 52603825), (50, 39978907), (53, 37715950), (58, 34464575), (74, 27012775), (95, 21041530), (106, 18857975), (145, 13785830), (185, 10805110), (190, 10520765), (265, 7543190), (290, 6892915), (370, 5402555), (475, 4208306), (530, 3771595), (551, 3627850), (703, 2843450), (725, 2757166), (925, 2161022), (950, 2104153), (1007, 1985050), (1073, 1862950), (1102, 1813925), (1325, 1508638), (1369, 1460150), (1406, 1421725), (1450, 1378583), (1537, 1300550), (1850, 1080511), (1961, 1019350), (2014, 992525), (2146, 931475), (2650, 754319), (2738, 730075), (2755, 725570), (3074, 650275), (3515, 568690), (3922, 509675), (5035, 397010), (5365, 372590), (5510, 362785), (6845, 292030), (7030, 284345), (7685, 260110), (9805, 203870), (10070, 198505), (10730, 186295), (13690, 146015), (13775, 145114), (15370, 130055), (17575, 113738), (19610, 101935), (20387, 98050), (25175, 79402), (26011, 76850), (26825, 74518), (27550, 72557), (29203, 68450), (34225, 58406), (35150, 56869), (37259, 53650), (38425, 52022), (39701, 50350), (40774, 49025)]