19755990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 54302976

約数和(自身を除く): 34546986

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 73, 90, 93, 97, 146, 155, 186, 194, 219, 279, 291, 310, 365, 438, 465, 485, 558, 582, 657, 730, 873, 930, 970, 1095, 1314, 1395, 1455, 1746, 2190, 2263, 2790, 2910, 3007, 3285, 4365, 4526, 6014, 6570, 6789, 7081, 8730, 9021, 11315, 13578, 14162, 15035, 18042, 20367, 21243, 22630, 27063, 30070, 33945, 35405, 40734, 42486, 45105, 54126, 63729, 67890, 70810, 90210, 101835, 106215, 127458, 135315, 203670, 212430, 219511, 270630, 318645, 439022, 637290, 658533, 1097555, 1317066, 1975599, 2195110, 3292665, 3951198, 6585330, 9877995, 19755990]

約数ペア:

[(1, 19755990), (2, 9877995), (3, 6585330), (5, 3951198), (6, 3292665), (9, 2195110), (10, 1975599), (15, 1317066), (18, 1097555), (30, 658533), (31, 637290), (45, 439022), (62, 318645), (73, 270630), (90, 219511), (93, 212430), (97, 203670), (146, 135315), (155, 127458), (186, 106215), (194, 101835), (219, 90210), (279, 70810), (291, 67890), (310, 63729), (365, 54126), (438, 45105), (465, 42486), (485, 40734), (558, 35405), (582, 33945), (657, 30070), (730, 27063), (873, 22630), (930, 21243), (970, 20367), (1095, 18042), (1314, 15035), (1395, 14162), (1455, 13578), (1746, 11315), (2190, 9021), (2263, 8730), (2790, 7081), (2910, 6789), (3007, 6570), (3285, 6014), (4365, 4526)]