20470087980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1\times {\mathrm{3019}}^1$

素因数の和:3444

約数の個数: 144

約数和(自身を含む): 62790873600

約数和(自身を除く): 42320785620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 271, 278, 417, 542, 556, 695, 813, 834, 1084, 1251, 1355, 1390, 1626, 1668, 2085, 2439, 2502, 2710, 2780, 3019, 3252, 4065, 4170, 4878, 5004, 5420, 6038, 6255, 8130, 8340, 9057, 9756, 12076, 12195, 12510, 15095, 16260, 18114, 24390, 25020, 27171, 30190, 36228, 37669, 45285, 48780, 54342, 60380, 75338, 90570, 108684, 113007, 135855, 150676, 181140, 188345, 226014, 271710, 339021, 376690, 419641, 452028, 543420, 565035, 678042, 753380, 818149, 839282, 1130070, 1258923, 1356084, 1636298, 1678564, 1695105, 2098205, 2260140, 2454447, 2517846, 3272596, 3390210, 3776769, 4090745, 4196410, 4908894, 5035692, 6294615, 6780420, 7363341, 7553538, 8181490, 8392820, 9817788, 12272235, 12589230, 14726682, 15107076, 16362980, 18883845, 24544470, 25178460, 29453364, 36816705, 37767690, 49088940, 73633410, 75535380, 113722711, 147266820, 227445422, 341168133, 454890844, 568613555, 682336266, 1023504399, 1137227110, 1364672532, 1705840665, 2047008798, 2274454220, 3411681330, 4094017596, 5117521995, 6823362660, 10235043990, 20470087980]

約数ペア:

[(1, 20470087980), (2, 10235043990), (3, 6823362660), (4, 5117521995), (5, 4094017596), (6, 3411681330), (9, 2274454220), (10, 2047008798), (12, 1705840665), (15, 1364672532), (18, 1137227110), (20, 1023504399), (30, 682336266), (36, 568613555), (45, 454890844), (60, 341168133), (90, 227445422), (139, 147266820), (180, 113722711), (271, 75535380), (278, 73633410), (417, 49088940), (542, 37767690), (556, 36816705), (695, 29453364), (813, 25178460), (834, 24544470), (1084, 18883845), (1251, 16362980), (1355, 15107076), (1390, 14726682), (1626, 12589230), (1668, 12272235), (2085, 9817788), (2439, 8392820), (2502, 8181490), (2710, 7553538), (2780, 7363341), (3019, 6780420), (3252, 6294615), (4065, 5035692), (4170, 4908894), (4878, 4196410), (5004, 4090745), (5420, 3776769), (6038, 3390210), (6255, 3272596), (8130, 2517846), (8340, 2454447), (9057, 2260140), (9756, 2098205), (12076, 1695105), (12195, 1678564), (12510, 1636298), (15095, 1356084), (16260, 1258923), (18114, 1130070), (24390, 839282), (25020, 818149), (27171, 753380), (30190, 678042), (36228, 565035), (37669, 543420), (45285, 452028), (48780, 419641), (54342, 376690), (60380, 339021), (75338, 271710), (90570, 226014), (108684, 188345), (113007, 181140), (135855, 150676)]