209248750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 80

約数和(自身を含む): 426800880

約数和(自身を除く): 217552130

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 85, 86, 125, 170, 215, 229, 250, 425, 430, 458, 625, 731, 850, 1075, 1145, 1250, 1462, 2125, 2150, 2290, 3655, 3893, 4250, 5375, 5725, 7310, 7786, 9847, 10625, 10750, 11450, 18275, 19465, 19694, 21250, 26875, 28625, 36550, 38930, 49235, 53750, 57250, 91375, 97325, 98470, 143125, 167399, 182750, 194650, 246175, 286250, 334798, 456875, 486625, 492350, 836995, 913750, 973250, 1230875, 1673990, 2433125, 2461750, 4184975, 4866250, 6154375, 8369950, 12308750, 20924875, 41849750, 104624375, 209248750]

約数ペア:

[(1, 209248750), (2, 104624375), (5, 41849750), (10, 20924875), (17, 12308750), (25, 8369950), (34, 6154375), (43, 4866250), (50, 4184975), (85, 2461750), (86, 2433125), (125, 1673990), (170, 1230875), (215, 973250), (229, 913750), (250, 836995), (425, 492350), (430, 486625), (458, 456875), (625, 334798), (731, 286250), (850, 246175), (1075, 194650), (1145, 182750), (1250, 167399), (1462, 143125), (2125, 98470), (2150, 97325), (2290, 91375), (3655, 57250), (3893, 53750), (4250, 49235), (5375, 38930), (5725, 36550), (7310, 28625), (7786, 26875), (9847, 21250), (10625, 19694), (10750, 19465), (11450, 18275)]