21142000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:96

約数の個数: 120

約数和(自身を含む): 57625776

約数和(自身を除く): 36483776

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 125, 155, 176, 200, 220, 248, 250, 275, 310, 341, 400, 440, 496, 500, 550, 620, 682, 775, 880, 961, 1000, 1100, 1240, 1364, 1375, 1550, 1705, 1922, 2000, 2200, 2480, 2728, 2750, 3100, 3410, 3844, 3875, 4400, 4805, 5456, 5500, 6200, 6820, 7688, 7750, 8525, 9610, 10571, 11000, 12400, 13640, 15376, 15500, 17050, 19220, 21142, 22000, 24025, 27280, 31000, 34100, 38440, 42284, 42625, 48050, 52855, 62000, 68200, 76880, 84568, 85250, 96100, 105710, 120125, 136400, 169136, 170500, 192200, 211420, 240250, 264275, 341000, 384400, 422840, 480500, 528550, 682000, 845680, 961000, 1057100, 1321375, 1922000, 2114200, 2642750, 4228400, 5285500, 10571000, 21142000]

約数ペア:

[(1, 21142000), (2, 10571000), (4, 5285500), (5, 4228400), (8, 2642750), (10, 2114200), (11, 1922000), (16, 1321375), (20, 1057100), (22, 961000), (25, 845680), (31, 682000), (40, 528550), (44, 480500), (50, 422840), (55, 384400), (62, 341000), (80, 264275), (88, 240250), (100, 211420), (110, 192200), (124, 170500), (125, 169136), (155, 136400), (176, 120125), (200, 105710), (220, 96100), (248, 85250), (250, 84568), (275, 76880), (310, 68200), (341, 62000), (400, 52855), (440, 48050), (496, 42625), (500, 42284), (550, 38440), (620, 34100), (682, 31000), (775, 27280), (880, 24025), (961, 22000), (1000, 21142), (1100, 19220), (1240, 17050), (1364, 15500), (1375, 15376), (1550, 13640), (1705, 12400), (1922, 11000), (2000, 10571), (2200, 9610), (2480, 8525), (2728, 7750), (2750, 7688), (3100, 6820), (3410, 6200), (3844, 5500), (3875, 5456), (4400, 4805)]