21284000

素因数分解:

$2^5\times 5^3\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 55547856

約数和(自身を除く): 34263856

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 313, 340, 400, 425, 500, 544, 626, 680, 800, 850, 1000, 1252, 1360, 1565, 1700, 2000, 2125, 2504, 2720, 3130, 3400, 4000, 4250, 5008, 5321, 6260, 6800, 7825, 8500, 10016, 10642, 12520, 13600, 15650, 17000, 21284, 25040, 26605, 31300, 34000, 39125, 42568, 50080, 53210, 62600, 68000, 78250, 85136, 106420, 125200, 133025, 156500, 170272, 212840, 250400, 266050, 313000, 425680, 532100, 626000, 665125, 851360, 1064200, 1252000, 1330250, 2128400, 2660500, 4256800, 5321000, 10642000, 21284000]

約数ペア:

[(1, 21284000), (2, 10642000), (4, 5321000), (5, 4256800), (8, 2660500), (10, 2128400), (16, 1330250), (17, 1252000), (20, 1064200), (25, 851360), (32, 665125), (34, 626000), (40, 532100), (50, 425680), (68, 313000), (80, 266050), (85, 250400), (100, 212840), (125, 170272), (136, 156500), (160, 133025), (170, 125200), (200, 106420), (250, 85136), (272, 78250), (313, 68000), (340, 62600), (400, 53210), (425, 50080), (500, 42568), (544, 39125), (626, 34000), (680, 31300), (800, 26605), (850, 25040), (1000, 21284), (1252, 17000), (1360, 15650), (1565, 13600), (1700, 12520), (2000, 10642), (2125, 10016), (2504, 8500), (2720, 7825), (3130, 6800), (3400, 6260), (4000, 5321), (4250, 5008)]