20210490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36398790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 53, 57, 90, 95, 106, 114, 159, 171, 190, 223, 265, 285, 318, 342, 446, 477, 530, 570, 669, 795, 855, 954, 1007, 1115, 1338, 1590, 1710, 2007, 2014, 2230, 2385, 3021, 3345, 4014, 4237, 4770, 5035, 6042, 6690, 8474, 9063, 10035, 10070, 11819, 12711, 15105, 18126, 20070, 21185, 23638, 25422, 30210, 35457, 38133, 42370, 45315, 59095, 63555, 70914, 76266, 90630, 106371, 118190, 127110, 177285, 190665, 212742, 224561, 354570, 381330, 449122, 531855, 673683, 1063710, 1122805, 1347366, 2021049, 2245610, 3368415, 4042098, 6736830, 10105245, 20210490]

約数ペア:

[(1, 20210490), (2, 10105245), (3, 6736830), (5, 4042098), (6, 3368415), (9, 2245610), (10, 2021049), (15, 1347366), (18, 1122805), (19, 1063710), (30, 673683), (38, 531855), (45, 449122), (53, 381330), (57, 354570), (90, 224561), (95, 212742), (106, 190665), (114, 177285), (159, 127110), (171, 118190), (190, 106371), (223, 90630), (265, 76266), (285, 70914), (318, 63555), (342, 59095), (446, 45315), (477, 42370), (530, 38133), (570, 35457), (669, 30210), (795, 25422), (855, 23638), (954, 21185), (1007, 20070), (1115, 18126), (1338, 15105), (1590, 12711), (1710, 11819), (2007, 10070), (2014, 10035), (2230, 9063), (2385, 8474), (3021, 6690), (3345, 6042), (4014, 5035), (4237, 4770)]