221175080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 596090880

約数和(自身を除く): 374915800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 83, 124, 140, 155, 166, 217, 248, 280, 307, 310, 332, 415, 434, 581, 614, 620, 664, 830, 868, 1085, 1162, 1228, 1240, 1535, 1660, 1736, 2149, 2170, 2324, 2456, 2573, 2905, 3070, 3320, 4298, 4340, 4648, 5146, 5810, 6140, 8596, 8680, 9517, 10292, 10745, 11620, 12280, 12865, 17192, 18011, 19034, 20584, 21490, 23240, 25481, 25730, 36022, 38068, 42980, 47585, 50962, 51460, 66619, 72044, 76136, 85960, 90055, 95170, 101924, 102920, 127405, 133238, 144088, 178367, 180110, 190340, 203848, 254810, 266476, 333095, 356734, 360220, 380680, 509620, 532952, 666190, 713468, 720440, 789911, 891835, 1019240, 1332380, 1426936, 1579822, 1783670, 2664760, 3159644, 3567340, 3949555, 5529377, 6319288, 7134680, 7899110, 11058754, 15798220, 22117508, 27646885, 31596440, 44235016, 55293770, 110587540, 221175080]

約数ペア:

[(1, 221175080), (2, 110587540), (4, 55293770), (5, 44235016), (7, 31596440), (8, 27646885), (10, 22117508), (14, 15798220), (20, 11058754), (28, 7899110), (31, 7134680), (35, 6319288), (40, 5529377), (56, 3949555), (62, 3567340), (70, 3159644), (83, 2664760), (124, 1783670), (140, 1579822), (155, 1426936), (166, 1332380), (217, 1019240), (248, 891835), (280, 789911), (307, 720440), (310, 713468), (332, 666190), (415, 532952), (434, 509620), (581, 380680), (614, 360220), (620, 356734), (664, 333095), (830, 266476), (868, 254810), (1085, 203848), (1162, 190340), (1228, 180110), (1240, 178367), (1535, 144088), (1660, 133238), (1736, 127405), (2149, 102920), (2170, 101924), (2324, 95170), (2456, 90055), (2573, 85960), (2905, 76136), (3070, 72044), (3320, 66619), (4298, 51460), (4340, 50962), (4648, 47585), (5146, 42980), (5810, 38068), (6140, 36022), (8596, 25730), (8680, 25481), (9517, 23240), (10292, 21490), (10745, 20584), (11620, 19034), (12280, 18011), (12865, 17192)]