221504920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:226

約数の個数: 192

約数和(自身を含む): 640880640

約数和(自身を除く): 419375720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 151, 155, 169, 182, 217, 248, 260, 280, 302, 310, 338, 364, 403, 434, 455, 520, 604, 620, 676, 728, 755, 806, 845, 868, 910, 1057, 1085, 1183, 1208, 1240, 1352, 1510, 1612, 1690, 1736, 1820, 1963, 2015, 2114, 2170, 2366, 2821, 3020, 3224, 3380, 3640, 3926, 4030, 4228, 4340, 4681, 4732, 5239, 5285, 5642, 5915, 6040, 6760, 7852, 8060, 8456, 8680, 9362, 9464, 9815, 10478, 10570, 11284, 11830, 13741, 14105, 15704, 16120, 18724, 19630, 20956, 21140, 22568, 23405, 23660, 25519, 26195, 27482, 28210, 32767, 36673, 37448, 39260, 41912, 42280, 46810, 47320, 51038, 52390, 54964, 56420, 60853, 65534, 68705, 73346, 78520, 93620, 102076, 104780, 109928, 112840, 121706, 127595, 131068, 137410, 146692, 163835, 178633, 183365, 187240, 204152, 209560, 243412, 255190, 262136, 274820, 293384, 304265, 327670, 357266, 366730, 425971, 486824, 510380, 549640, 608530, 655340, 714532, 733460, 791089, 851942, 893165, 1020760, 1217060, 1310680, 1429064, 1466920, 1582178, 1703884, 1786330, 2129855, 2434120, 3164356, 3407768, 3572660, 3955445, 4259710, 5537623, 6328712, 7145320, 7910890, 8519420, 11075246, 15821780, 17038840, 22150492, 27688115, 31643560, 44300984, 55376230, 110752460, 221504920]

約数ペア:

[(1, 221504920), (2, 110752460), (4, 55376230), (5, 44300984), (7, 31643560), (8, 27688115), (10, 22150492), (13, 17038840), (14, 15821780), (20, 11075246), (26, 8519420), (28, 7910890), (31, 7145320), (35, 6328712), (40, 5537623), (52, 4259710), (56, 3955445), (62, 3572660), (65, 3407768), (70, 3164356), (91, 2434120), (104, 2129855), (124, 1786330), (130, 1703884), (140, 1582178), (151, 1466920), (155, 1429064), (169, 1310680), (182, 1217060), (217, 1020760), (248, 893165), (260, 851942), (280, 791089), (302, 733460), (310, 714532), (338, 655340), (364, 608530), (403, 549640), (434, 510380), (455, 486824), (520, 425971), (604, 366730), (620, 357266), (676, 327670), (728, 304265), (755, 293384), (806, 274820), (845, 262136), (868, 255190), (910, 243412), (1057, 209560), (1085, 204152), (1183, 187240), (1208, 183365), (1240, 178633), (1352, 163835), (1510, 146692), (1612, 137410), (1690, 131068), (1736, 127595), (1820, 121706), (1963, 112840), (2015, 109928), (2114, 104780), (2170, 102076), (2366, 93620), (2821, 78520), (3020, 73346), (3224, 68705), (3380, 65534), (3640, 60853), (3926, 56420), (4030, 54964), (4228, 52390), (4340, 51038), (4681, 47320), (4732, 46810), (5239, 42280), (5285, 41912), (5642, 39260), (5915, 37448), (6040, 36673), (6760, 32767), (7852, 28210), (8060, 27482), (8456, 26195), (8680, 25519), (9362, 23660), (9464, 23405), (9815, 22568), (10478, 21140), (10570, 20956), (11284, 19630), (11830, 18724), (13741, 16120), (14105, 15704)]