1780454925

素因数分解:

$3^6\times 5^2\times {\mathrm{211}}^1\times {\mathrm{463}}^1$

素因数の和:702

約数の個数: 84

約数和(自身を含む): 3333002944

約数和(自身を除く): 1552548019

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 211, 225, 243, 405, 463, 633, 675, 729, 1055, 1215, 1389, 1899, 2025, 2315, 3165, 3645, 4167, 5275, 5697, 6075, 6945, 9495, 11575, 12501, 15825, 17091, 18225, 20835, 28485, 34725, 37503, 47475, 51273, 62505, 85455, 97693, 104175, 112509, 142425, 153819, 187515, 256365, 293079, 312525, 337527, 427275, 488465, 562545, 769095, 879237, 937575, 1281825, 1465395, 1687635, 2442325, 2637711, 2812725, 3845475, 4396185, 7326975, 7913133, 8438175, 13188555, 21980925, 23739399, 39565665, 65942775, 71218197, 118696995, 197828325, 356090985, 593484975, 1780454925]

約数ペア:

[(1, 1780454925), (3, 593484975), (5, 356090985), (9, 197828325), (15, 118696995), (25, 71218197), (27, 65942775), (45, 39565665), (75, 23739399), (81, 21980925), (135, 13188555), (211, 8438175), (225, 7913133), (243, 7326975), (405, 4396185), (463, 3845475), (633, 2812725), (675, 2637711), (729, 2442325), (1055, 1687635), (1215, 1465395), (1389, 1281825), (1899, 937575), (2025, 879237), (2315, 769095), (3165, 562545), (3645, 488465), (4167, 427275), (5275, 337527), (5697, 312525), (6075, 293079), (6945, 256365), (9495, 187515), (11575, 153819), (12501, 142425), (15825, 112509), (17091, 104175), (18225, 97693), (20835, 85455), (28485, 62505), (34725, 51273), (37503, 47475)]